Neat art! maybe you tried this and didn't like it but could maybe benefit from using the lighter color to outline the characters so that you don't look like the invisible man when walking down the street! =P
Thanks for your feedback! And yeah, I think so too. But while I was making this I just thought its alright and usable. Just to realise It would've be better if I did that at first! I'll keep that in mind when I'm improving the game!