I actually almost thought you where a porcelain doll at first; like those repainted ones that are all over DA lately. Very beautiful cosplay though, and I don't even play Final Fantasy other then the old Crystal Chronicles game for the Gamecube XD
Um... the outfit is right, and I assume the location is supposed to be the seventh Heaven or something but.... honestly, without reading the title, I couldn't tell it was Tifa. Maybe some more manipulation with... makeup maybe? Your skin tone is right, your face just doesn't... fit with it.
That photoshoot was a year ago, I'm rid of this cosplay and I can't and don't want to change anything, so... your friendly criticisms not get any result, sorry. PS: is not a Seventh Heaven. It's a Nibelheim Inn from Crisis Core, when Tifa was a teenage.