Tygrin's Sprites [WIP]

[Zadaben]

(Updated with a shiny new drill )
I made an edit of one of your sprites
he's a neat little bugger with a nice, simple design, nice work

Okay so, first thing's first, when spriting it's important to keep your colors in check, not only does a sprite appear more clean when it has less colors, it becomes easier to manage and animate, because you can manage your colors more easily. Secondly, it's important that the difference between each color is enough so that they don't blend into each other so much that you can't even see the shading, so high contrast is essential. Additionally, it's generally not ideal to make lighter/darker shades just by sliding up and down the ramp, there is a technique that Eman can tell you all about called hueshifting, where you change colors across the spectrum as you go from dark to light or vice versa, there are resources here on that so I won't get too detailed, but it's something you should definitely look into.
Another thing I changed in my edit was the light source, you didn't have a very clear one, the legs and eye were lit from our left and the drill was lit from the right. I chose to shade the entire thing from the left.
You're doing some good work, but you should slow down a bit and sprite one thing at a time, it doesn't have to be this drill bug guy, but try picking one thing to work on before hurrying to make more sprites.