Slice, gently scrape, then sand down those pesky fins/crests.
Ta da! A seamless, easy to dress, pink body!
* Use your craft knife carefully to remove the bulk of the fin,
* Then use the back of the knife to scrape against the body which will leave slight striations as seen in the bottom arm picture.
* Get out your nail sanding block and sand away those lines until it’s invisible.
Now your monster can wear long sleeves and trousers!