Hi guys
I started this small platforming proect, the game will run on a resolution of 160*144 scaled 2x.
trying to running low on colors, i'm using Arne's 16-color palette.
Here's the main player

EDIT: Decided to go for a naked version

and leave two shirts as power-ups.

And a running animation, with and without shirt.

The sprite box is 24*24 (however is not completely full).
I also drawn some acorns (alias coins

)
Here's a little mockup

Any tips for improving the quality of my sprites?