I don't mean to sound like an ass, just in case it comes across that way - and I'm not sure if it's the camera, the angle, lighting, or all of it, but it really looks like a lot of your suit is discoloured and grimy. Either that is grime and oils, you've repainted it, put a sealant or something like that on it? ... it just seems like there's more going on with it then it just peeling? From the photos it doesn't look like outright peeling is the only issue, as I've never seen photos of this figure with that dirty yellow discolouration which looks like it's spread quite a lot... but again, I'm not sure if that's just the camera and lighting with optical illusions turning the suit a different colour. Is it like that in person or have you applied anything to it?
EDIT: Just thought the discolouration matches where the suit has peeled, might just be transfer of the peelings or something of that ilk
No. These figures have brown paint app and the flash/lighting/closeness probably made it more apparent.