I really like #2 and #3! 2 is really pretty and flashy but 3 is amazing too! I like lace so I would go with 3 but either is super cute

(order best to worst)

#5- very classy and elegant- form fitting and gorgeous

#2- sequins are very flashy and attention grabbing.

#3- the cup parts being visible is unattractive

#4- very plain and the color is dull

#1- the visible cup line is unattractive- the colors are fine but the overall look is trashy

((Hope I helped))

i like 1 2 and 4 you should try them on and decide on the most flattering

for NYE i'd go with #2 (sequin dress).