thank you advice  , this is my first drawing with colors other than the 27 of the Amstrad CPC , I may be forced on the dithering

 Too much unnecessary dithering. I like the concept and idea though. Good job. :]

I like the muscles.

I like the PJ logo...

it's too dithered.

for the teeth I realized too late that I had not more color for antialiasing in shades of gray , I contented myself with this strange mixture  , for the yellow bar, it is true that it's a bit flashy

 Awesome, loved what you did with the title!

I kind of agree about doing something to the bottom bar tho.

All rulez!  
, only the teeth unnatural. And the yellow bar at the bottomit is better to paint a different color