I think due to my very limited time, I may switch to smaller pixels. Instead of a 64 x 64 workspace, I'm going to switch to a 32 x 32 workspace.
actually you'll probably find that more challenging imo.
Id recommend to stick with this canvas size its quite a good balance.
one thing to keep in mind is don't think inside the box for sprites.
Most nice sprites well overhang their primary collision box in a game.
I often start out by enabling the grid in my software, paint in the bounding box then sketch the sprite on a layer above.
quite often I'll have another sprite or 2 nearby in the same canvas to keep the scale consistent.