I love this! And I'm not trying to be rude when I say this next thing, it's just a tip! You don't have to!!!! Tip: Take areas where it need to be shaded like where it is further back, you should take the same color, make it, one color deeper, and then, color that there! And then it'll look like it's shaded! But this is just a tip! You don't need to try it at all, because your art is beautiful and unique in it's on way! Just like you!