im not sure if its something to be worried about or not but i do see what you mean by it looking a little dry. im not 100% sure when cham's have their first shedding but it could be that. but like i said im not sure me self.
its hard to see in the pic, but could it be some retained shed, maybe other have some ideas as well, you could try a little mineral oil on a qtip and see if that helps