I like the early war Waffen SS specific winter coat. It was more or less only made early on. By 42 onward they decided simplified production with reversible cammo like the army with matching trousers was the way to go. Thus the collar tabs to denote waffen SS and Jack boots to further draw attention to early war.
Additional detail: Her left collar denotes second NCO rank. Thus her weapon of an MP-40 along with a map case on her belt is very appropriate for her rank.
Erica gets a lot of little details correct that most artists just... Don't. Always liked that about Erica's work. Lots of accurate historical detail.