Alien Desin #1 - Aars

I really like how the overall desing and hands ended up, not so much the heads an the side. I have no idea how to draw the jaws that i was thinking so it kinda ended up really strange, wanted it to be a bit like a snake when it's full open, but most of the time all the teeth are hidden under it's "cheeks" .
Just some sketches for now, but i may make something with this species in the future.

Species : Aars;
Type : Amphibians;
Alliance : Neutral;
Height : From 0,90 to 1,20 meters as an adult;
Habitat : Since the overall planet is very hot and humid, the Aars can live pretty much anywere on it, but they prefer dense florests close to bodies of water like rivers or lakes;
Classification : Omnivorous, diet mostly consists of fruits, insects or small fish;
Description : Peacefull and relaxed,the Aars live in small tribes compossed from 7 to 11 families. While tribes don't interact much with others very much wars and fights are very rare, most problems are resolved with fights between the Chief Hunter or Tribal Leader of each tribe;
Color : Various shades of green, blue and red. Stripes may be black or dark blue;
Civilization level : Type 0.

So what you guys think ?