Please Help I got lighter foils in my brown hair from a friend who used to be a hairdresser. They turned out horrible, yellow up the top and brassy down the bottom. We did put an ash blonde over it after I got the foils out and she stayed until she thought it had been toned down and then went home as it was getting late. She did mention that I could put a brown over it if I wasn't happy with the end result. So today I put a semi over them in my natural hair colour thinking that they would then turn out a lighter brown colour and be ok. I think they are just a yuck colour and that maybe I should have put some red back in with a rinse before I did the brown. Is it now too late to put in a red rinse and then perhaps a darker brown over the top of that? TIA