me and a friend discussed this.
mermaid geek: its kinda like a dolphin AND a fish xd
mermaid geek: its drawn well, but the tail wont work like that, at least not very well xd
me: no..it's.. lumpy
mermaid geek: a legless tail has no nead for a butt. sorry but no ass mers allowed in realityland.
me: I think they based it too much on legs put together
mermaid geek: and how the muscles seperate on the bottom and weave is not feasable
mermaid geek: they need to look at dolphins and whale musculature
mermaid geek: but fish move side to side, so the muscles are very different for fish based ones
me: the gluteus should be longer, right..? less like buttocks, more likeon..
mermaid geek: they dont have a gluteus in the way we think
mermaid geek: a gluteus' sole purpose is to propel legs. which mers do not have xd
me: flippers!
me: though hers are not attached to the glutes at all
mermaid geek: flippers are arms
mermaid geek: fins are different
mermaid geek: fins are strange little skeletal extras with some muscles, but nothing like a limb/flipper
mermaid geek: its like making a centaur if one puts a dolphin flipper on the pelvis...
so consider it crits.