OH MAN, i just realized, im a die hard subscriber to you on youtube XD your tuts always helped me, can you please take a look at my grim reaper grayscale painting i did, its not the best but im 15 and i am willing to learn
I think at this time your focus should be on life drawing. Draw everything around you. Draw people, still lifes, environments, just anything you can find. After you master life drawing then you can move on to imaginative work, but if you start doing imaginative work without the foundations, your work will suffer. You are so young, so you have plenty of time later on to work on imaginative work. It can take years before you build up your mental library enough to successfully paint from your imagination.