I am not an artist

Hello,

I am not good at drawing. Nor English.  My grammar doesn't make this game better but my drawing skills are. Unfortunately i don't have one. 

For this game, i am spending very big efford and time to draw.

I am still unsure about those questions about pixelart.

1. Should i stick to a palette?
2. Should i stick to constant canvas size?
3. How big color palette is big? Or how many colors are enough?

Maybe, someone who knows pixelart reads here and replies those question.

I made this seed icon game icon here becuase that on of the best pixelart i've drawn for this game.