oomis1105, It is very hard to have such a public forum on Tznius since everyone comes from different backgrounds where different things are accepted. One person could be wearing something that she finds very tzniusdig, while someone from someplace else can think that that person looks rather unrefined. Even is the same town you can have 2 different schools with completely different tznius gedarim.
In general, a lot of Tznius gedarim are a matter of sensitivity, if u have that sensitivity Kol Hakavod, if you are careful to project an image of a true Bas Yisroel no matter what today’s styles are, Ashrecha! If u don’t, certainly don’t mock someone that does. Respect them and hope that one day u will reach that level.