I agree with Maxxa, all you did was fill in the newer colors into the older sprites. If you search around here for my old revamp thread you will understand when maxxa and I are saying. Also, you could just look at the new sprites and see how you should do the outline, and shading.
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My old thread was deleted, so well if you want to see some revamps, just ask me and I can show you my olds ones. I may go back through the lounge and find ones I posted.