Jmacq of the JBL says this!

Destro's legs still look a little too long and skinny to me. But I can deal with the "not helmet-sized" head, because let's be honest...Destro is pretty much always drawn/animated as though the mask were skin-tight anyhow! (Heck, the lips move and facial expressions can change on it, too so....). Outside of his first few appearances in the comics, the mask basically acts like a real face anyhow, in other words.