Dude, you're not listening to the criticism. 
A sprite should be designed such that it doesn't have to be zoomed in or looked at pixel by pixel, like Hoeloe said.
Be sure to share with us any cool additions you add to it. It's been a few days now and those aren't exactly huge sprites.
You should know how much contrast you want to put. Don't be afraid of color correcting images as well as using RGB Curves. Try doing that on Gimp to get some nice contrast/hue shifting. There's no chance of doing it wrong if you're careful and pay attention.
And don't take anything said here as trying to bash you, we're all only trying to help.
A sprite should be designed such that it doesn't have to be zoomed in or looked at pixel by pixel, like Hoeloe said.
Be sure to share with us any cool additions you add to it. It's been a few days now and those aren't exactly huge sprites.
You should know how much contrast you want to put. Don't be afraid of color correcting images as well as using RGB Curves. Try doing that on Gimp to get some nice contrast/hue shifting. There's no chance of doing it wrong if you're careful and pay attention.
And don't take anything said here as trying to bash you, we're all only trying to help.