Wow...
I give you a rating of 10 because unlike the guy below me I think art is anything that you draw that comes from the heart. If you think this is the best you could do and you love the art then it is considered art. I don't think that just because the lighting or shading is off then it makes it not a form of art. Art is just that, art. Art doesn't have to be technical, that's why it's art. I love that you are pursuing something you love. Keep up the good work.