Despite the fact that you didn't use an image hosting site, these actually look nice.
With something so small though, your going to need to up the contrast and make the colors brigther (but you don't have to make the colors brighter, just focus on the contrast), I think you should focus more specifically on making the purple's last shade have more conrast, the red have more overall, and the green's brightest shade to be brighter. The mushroom caps could also stand to be a bit wider.
I think you should clean the sprite up a bit too, the eyes should be more square, and the highlights should be more faced towards the front of the torso/cape by about a pixel, the cap by two or three. The blue-ish shade you use for the white should change for each different color. For the reds it should be a bright pink, bright green for the green guy etc.
Its good though, nice job.
With something so small though, your going to need to up the contrast and make the colors brigther (but you don't have to make the colors brighter, just focus on the contrast), I think you should focus more specifically on making the purple's last shade have more conrast, the red have more overall, and the green's brightest shade to be brighter. The mushroom caps could also stand to be a bit wider.
I think you should clean the sprite up a bit too, the eyes should be more square, and the highlights should be more faced towards the front of the torso/cape by about a pixel, the cap by two or three. The blue-ish shade you use for the white should change for each different color. For the reds it should be a bright pink, bright green for the green guy etc.
Its good though, nice job.