If you adopt a doll you have full permission to upload the doll to your account, to remake it, or to use it as your own OC in stories and RPs. But please make sure to add the link to the original doll somewhere in the description. And please don't change the (first) name. I always try to find original names that work with the theme of the doll, and it always takes a lot of time.
Oh and please try not to adopt all the dolls so other users get a chance to adopt one too. But so far, have fun with your adopted doll. :)