What cutting method are you using @muserock2a? Too many of your cuts contain persistent visible snow, which wouldn't be the case if you use remove.bg. Please make sure your future cuts are cleaned from this kind of snow 👍

I am using remove.bg but for some reasons it have difficulties when the snow is in the middle of the hair. Is it maybe because i don't use premium version ?

I use the free online version too. It works less well if the source you provide it has been pre-cut already and superimposed on a different background, however.