diff --git a/DATASETS.md b/DATASETS.md
index dc36657..c196c18 100644
--- a/DATASETS.md
+++ b/DATASETS.md
@@ -7,7 +7,7 @@ datasets and is not directly redistributed by us. This data will be downloaded a
 of the `download_data.py` script. You can use `python visualize_data.py [path_to_dataset]` to visualize the data
 including some ground-truth annotations.
 
-First setup your environment by running `pip install -r requirements.txt`.
+First setup your environment by running `pip install -r requirements.txt` using python 3.10.
 
 ## SynthBody
 
@@ -21,6 +21,9 @@ The following command will download the dataset to `YOUR_DATA_DIRECTORY/synth_bo
 python download_data.py --dataset body --output-dir YOUR_DATA_DIRECTORY/
 ```
 
+If you want just a small subset of the data you can add the `--sample` flag.
+The total size of the dataset is approximately TODOGB.
+
 ### Contents
 
 #### Image Data
@@ -99,6 +102,9 @@ The following command will download the dataset to `YOUR_DATA_DIRECTORY/synth_fa
 python download_data.py --dataset face --output-dir /YOUR_DATA_DIRECTORY/
 ```
 
+If you want just a small subset of the data you can add the `--sample` flag.
+The total size of the dataset is approximately TODOGB.
+
 ### Contents
 
 #### Image Data
@@ -172,6 +178,9 @@ The following command will download the dataset to `YOUR_DATA_DIRECTORY/synth_ha
 python download_data.py --dataset hand --output-dir /YOUR_DATA_DIRECTORY/
 ```
 
+If you want just a small subset of the data you can add the `--sample` flag.
+The total size of the dataset is approximately TODOGB.
+
 ### Contents
 
 #### Image Data
diff --git a/download_data.py b/download_data.py
index 2e373b4..ce0d1ce 100644
--- a/download_data.py
+++ b/download_data.py
@@ -72,8 +72,8 @@ def _download_mpii_file(username: str, password: str, domain: str, file: str, ou
 def get_mano(out_dir: Path) -> None:
     """Download MANO data."""
     print("Downloading MANO...")
-    username = input("Username: ")
-    password = getpass("Password: ")
+    username = input("Username for https://mano.is.tue.mpg.de/: ")
+    password = getpass("Password for https://mano.is.tue.mpg.de/: ")
     _download_mpii_file(
         username,
         password,
@@ -86,8 +86,8 @@ def get_mano(out_dir: Path) -> None:
 def get_amass(out_dir: Path) -> None:
     """Download AMASS data."""
     print("Downloading AMASS...")
-    username = input("Username: ")
-    password = getpass("Password: ")
+    username = input("Username for https://amass.is.tue.mpg.de/: ")
+    password = getpass("Password for https://amass.is.tue.mpg.de/: ")
     _download_mpii_file(
         username,
         password,
@@ -119,11 +119,12 @@ def extract(data_path: Path, out_path: Optional[Path] = None) -> None:
         raise ValueError(f"Unknown file type {data_path.suffix}")
 
 
-def download_synthmocap_data(dataset: str, out_dir: Path) -> None:
+def download_synthmocap_data(data_dir: Path, dataset: str, zip_dir: Path, sample: bool) -> None:
     """Download one of the SynthMoCap datasets."""
-    out_dir.mkdir(exist_ok=True, parents=True)
-    for part in range(1, N_PARTS + 1):
-        out_path = out_dir / f"{dataset}_{part:02d}.zip"
+    data_dir.mkdir(exist_ok=True, parents=True)
+    zip_dir.mkdir(exist_ok=True, parents=True)
+    for part in range(1, 2 if sample else N_PARTS + 1):
+        out_path = zip_dir / f"{dataset}_{part:02d}.zip"
         print(f"Downloading {dataset} part {part}...")
         url = f"https://facesyntheticspubwedata.blob.core.windows.net/sga-2024-synthmocap/{dataset}_{part:02d}.zip"
         try:
@@ -144,7 +145,8 @@ def download_synthmocap_data(dataset: str, out_dir: Path) -> None:
             if out_path.exists():
                 out_path.unlink()
             sys.exit(1)
-
+        extract(out_path, data_dir / dataset)
+        out_path.unlink()
 
 def process_metadata(data_dir: Path, dataset_name: str) -> None:
     """Process the metadata to include the correct pose data."""
@@ -204,6 +206,7 @@ def main() -> None:
         choices=["face", "body", "hand"],
         required=True,
     )
+    parser.add_argument("--sample", action="store_true", help="Only download a small sample of the data")
     args = parser.parse_args()
     dataset_name = f"synth_{args.dataset}"
     data_dir = Path(args.output_dir)
@@ -218,11 +221,7 @@ def main() -> None:
         path.unlink()
     # download the SynthEgo dataset
     zip_dir = data_dir / f"{dataset_name}_zip"
-    download_synthmocap_data(dataset_name, zip_dir)
-    # extract the SynthEgo dataset
-    for path in list(zip_dir.glob("*.zip")):
-        extract(path, data_dir / dataset_name)
-        path.unlink()
+    download_synthmocap_data(data_dir, dataset_name, zip_dir, args.sample)
     zip_dir.rmdir()
     if args.dataset in ["body", "hand"]:
         # process the metadata
diff --git a/requirements.txt b/requirements.txt
index 54a5b65..d237674 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-matplotlib
-numpy
-opencv-python
-pyrender
-tqdm
-transformations
-trimesh
\ No newline at end of file
+matplotlib==3.7.1
+numpy==1.26.4
+opencv-python==4.10.0.84
+pyrender==0.1.45
+tqdm==4.65.0
+transformations==2022.9.26
+trimesh==3.22.1
\ No newline at end of file
diff --git a/visualize_data.py b/visualize_data.py
index a19aef7..e7cf4b9 100644
--- a/visualize_data.py
+++ b/visualize_data.py
@@ -255,8 +255,8 @@ def draw_landmarks(
 
 def _download_smplh() -> None:
     print("Downloading SMPL-H...")
-    username = input("Username: ")
-    password = getpass("Password: ")
+    username = input("Username for https://mano.is.tue.mpg.de/: ")
+    password = getpass("Password for https://mano.is.tue.mpg.de/: ")
     out_path = Path(__file__).parent / "smplh" / "smplh.tar.xz"
     out_path.parent.mkdir(exist_ok=True, parents=True)
     url = "https://download.is.tue.mpg.de/download.php?domain=mano&resume=1&sfile=smplh.tar.xz"