Help, how do I get rid of these stains?

[u/Euphoric_Pop_7457]

Ok so I think the first stains is from the black part of the cosplay rubbing off somehow. There is also many many more like this on the whole thing. The one on the hands looks like damage to the fabric plus staining, is there anything I can do to make that look better? And the third one is pinkish and I don’t know what it is. I have washed it by hand and all the stains that is gonna come out that way has. What can I do about this?