Costume, ABSOLUTELY.
Yes to the style, no to the color c:
Hair yes. Not so much on the rest.
I don't think I could unless I was a demon o.O;
for halloween or randomly on grandmas birthday
: UM YES OF COURSE. ALL DAY, ERRYDAY. (How does one wear ominous floating smoke though?)

Maybe, wouldn't be very flattering on me but I'd feel special!
yes, but only if no clowns follow me.
I mean that's pretty much already a snapshot of how I look waking up in the mornings before I put on my human face, so yeah I would. ;3
I'd wear that kimono year round, but I'd only do that extensive makeup for Halloween.
If I were gong out for the evening yes, it's very pretty.