RQ: Gas Mask

RQ for my friend-with-not-wrong-benefits (who is paying me back with anime/manga/other downloads OTL"")
asked me to draw some guy with a gas mask with a black background. and i don't usually draw stuff with black background, since i find it... annoying-looking. nevertheless though...
...
so yup

the reason why its so big is coz she wants to print it out a3 =.=;;

smoke stock here:[link]

PS: it looks pretty awesome inverted XD albeit a little creepy...