After reviewing the code in `corruptions.py`, several issues and inconsistencies were identified based on coding standards and best practices:

1. **Inconsistent Function Documentation**
   - The `fillsquares` function's docstring is brief and lacks parameter and return value details.
   - **Proposed Change:** Expand the docstring to include parameter descriptions and expected return values.

2. **Unused Function Parameters**
   - In `gaussian_noise`, the `severity` parameter lacks validation for values outside the 1-5 range, risking errors.
   - **Proposed Change:** Add input validation to ensure `severity` is within the correct range.

3. **Missing Exception Handling**
   - Subprocess calls (e.g., in `motion_blur`) lack error handling, risking crashes without feedback.
   - **Proposed Change:** Implement try-except blocks to handle subprocess errors gracefully.

4. **Hardcoded Values**
   - Hardcoded values, such as `[60, 25, 12, 5, 3][severity - 1]`, pose maintenance challenges.
   - **Proposed Change:** Define these values as constants or configuration parameters for better maintainability.

5. **Missing Import Statements**
   - Dependencies like `skimage`, `cv2`, and `tfds` are used without explicit import statements.
   - **Proposed Change:** Include all import statements at the top of the file to clarify dependencies.

6. **Lack of Input Checking for Array Shapes**
   - Functions lack validation for input dimensions or types, risking failures with incorrect inputs.
   - **Proposed Change:** Validate input shapes and types, raising errors for non-conforming inputs.

7. **Insufficient Context in Comments**
   - Comments like `# /////////////// End Corruption Helpers ///////////////` are vague.
   - **Proposed Change:** Enhance comments to clearly explain the purpose and structure of code sections.

These changes aim to improve the code's quality, maintainability, and clarity.