Photoshop-like Python Script Development

I need a Python script that mimics Photoshop functionalities. The script should run on MacOS and must have an advanced graphical user interface (GUI).

Core Features:
- Image cropping and resizing
- Color correction and filters
- Layer manipulation

Ideal Skills & Experience:
- Proficiency in Python
- Experience with image processing libraries (e.g., PIL, OpenCV)
- Skills in developing advanced GUIs (e.g., using Tkinter, PyQt, or similar)
- Familiarity with MacOS application development

Please provide a portfolio with relevant projects.