I decided a while back to challenge myself with a study containing materials and colors I find difficult, mostly reflective surfaces and white materials. I wanted to do it all by hand with fairly standard brushes, avoiding any kind of textures, photo collaging or color picking. I found a NASA image I loved and this is the result of that work. I could do more with it, but I'm ready to move on, hope you like it!
Should have some more original work soon.
Original reference: here