There are some things we could do to enhance the project.

1. To enhance portability, we can configure the Raspberry Pi as a WiFi access point. This would create a local wireless network so you can control the system with an iPad with a VNC Client installed.
2. Modify lowlight.py so you can specify the shutter speed and ISO with options.
3. Build a small LED light and use it for light painting.
4. Use velcro and piggyback it on a motorized telescope, then do astrophotography.

Use your imagination!