It's a
HUmar. In any case, I'd suggest looking at fighter sprites (your basic King of Fighters and Capcom types) as better inspirations. Your colours are way too jarring, if you'll notice in the actual art, they're warmer, more orange with brownish shades than burn-your-retinas red and yellow.
If you're just getting into pixel making though, it might be better to start on easier things. There are plenty of tutorials listed for your enjoyment.
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Schu