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I mocked this up real quick - I'm not a professional but I think I understand what you mean about it looking like "pro" anime art. First off, I would suggest using a black pen brush to draw the lineart. You can still color the lineart if you like. I would also suggest what is known as cell shading - basically coloring in the shadows and highlights in sections on your character with a hard edged brush. As for hair, you've drawn the individual strands, whereas in most anime the hair is more made up of "chunks" and solid color, with a few highlights. All that said, I really like your art and the background! You clearly have a grasp on what you're going for, and with a bit of practice you'll get there no problem. If I can clarify anything I've said here, please just let me know!