Hello, so i am attempting to take a big step all at once in my painting. I am working on refurbing an old IG (valhallans) army i painted 15 years ago. My general plan is to use hair spray tech. on a green camo pattern to look like it was hastily applied. Although i haven't done this prior i don't see a huge issue. but when do i use the oil washes (new to me also). i know the streaking and rusting should be done after the white wash is applied and sealed. if you do any before i assume it wouldn't show through? any input or advise would be loved I can post pics as i am going if you would like. thanks in advance and have a great week.