My apolocheese if you have answered this before, but for your 3D-looking art, do you use a 3D modeling program, or is it 2D with really good shading or a filter like bevel? It's such a unique style!
No worries! Here's the process I usually use (note that I use mobile Ibispaint X, and that I do not know how well these steps translate to other programs! The app is free though ^_^)
Aaand here's a few examples of stuff I made using this technique