Only thing I really see that takes away from your pixel-ation is the contrast between light and dark areas as they would be portrayed if the clothes had made shadows occur. Of course this is just a recommendation and your work is fine in how it is but just as a suggestion you should slowly contract your light areas from dark using more then 2 two different colors to do so.
If you would like to learn more heres a youtube video on doing so that you may or may not find helpful -
https://www.youtube.com/watch?v=yU1mF1ipAZAAs you can see by the heart its a slow adjustment instead of just immediate. Ofc in BU pixeling this would be hard to do but on a minor scale, still very do-able.
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