Many keepers and breeders treat for mites prophylactically when getting a new animal. It's a pretty common practice to use proventamite in the quarantine tub even before seeing the animal in the scales. This particular animal being wild caught is certainly a candidate. I can't say definitively the picture shows mites on the snake but for sure he is high risk. Also high risk for endoparasites as well. I think it's a no brainer to treat prophylactically for mites. A stool sample can be checked to definitively assess for endoparasites.