简单的中翻英！！！！但要地道！

In all of these photos, this outfit appears many times.

outfit - A set of clothing, often with accessories. (一套衣服及配件）。

In all the photos, such dressing appears in many of them.

dressing
[ˈdresiŋ]
n.
穿衣; 化妆; 装束; 打扮

这里就是穿衣打扮的意思。