So true. Iits a good feeling if you done some god work even if you thought today istn your day^^
Btw it would be really awesome if you could find some time and take a look at my works and give some improvement advice. You can be totaly honest mate ;)
I just came from you there! what I see is that you can do way better if you would gather better reference... For instance, look at artists that use an anatomy that suits you better and compare them with real world anatomy, study their proportions and start applying this to your workflow. Don't use cheap 3D anatomy renders ;).
I see that you also lack of structure on your artworks, like... what s going on under the skin, and also symmetry, which I see that you came very closer to do a good symmetry and geometric shapes exercise in this post of yours.
I will just stick to drawing atm because the painting part can get very messy, so pay attention to gather beetter references and find what you like more, what artists, and what elements, proportions, shapes, themes, etc.