Anyone complaining about short neck needs to consdier what happens when one puts weight on hands, and does NOT force their shoulders down.
Also, if her boobs are as huge as in canon she's going to be plump.
Really, Danbooru, this is absurd.
I was also going to point to pictures of Tess Holiday to show how small a head can look on a large body. Not every girl looks like Jabba the Hutt from the neck up just because she's rounded like Atago is here. Especially at this angle the neck is hard to see.