Would it be possible to not have it split up into different styles and have the eyes change per situation? Other classes already have faces to express pain(after being shot), anger(after someone kills their medic), happiness(after shooting someone), and laughter(after killing someone elses medic). It shouldn't(or I think it wouldn't) be too much of a stretch to apply these simple expressions to pyro via this simple cosmetic.

It'd actually be really cool if it worked, like, $10 worth of really cool