I think you need to look at your reference a bit more.
I made a rough edit. You need to make that hat a little taller. Scrap those red eyes, just pointless putting them in there.
My edit isn't perfect but a few things need to be pointed out.

Clean that black line up. I've always imagined these bots were the most miserable off all bots. I think the eyes should convey that. Don't they have mouths too?
I think my hat is too tall.
You might want to study the original sprites Capcom made of this guy.
