The original model from oxo3dprinting is very realistic, but it doesn't print well with a lot of support material. This version has been sculpted to improve the overhangs on Ein's belly, mouth, and ears. Yes, he looks a little bit fatter, but the result looks much better when printed. 

You may need to paint on some supports and support blockers to ensure that only his tongue gets the support it needs. 

It's still not perfect, and I may continue to improve it, but it's still much easier to print than the original, so I decided to upload what I've done so far.