Everyone Loves Fruits!

[Vipershark]

yo hoeloe
don't get me wrong, i know tsr is hard on people so i know where you're coming from

but since he's actually making a point of trying to improve, don't be grating just for the sake of being grating
don't sugarcoat, but
yeah
you get my point

Anyway, yeah, you're gonna have to work on something bigger here.
It might not seem like it, but smaller sprites are actually much harder to work on since you have to make details stand out with not-much room to work in.

Try doing what Gors said and making these at 64x64. That will help you more to get started with learning lineart and shading techniques.