I respectfully disagree that Lizards look savage and uncivilized. Acesahn, you seem to be making a lot of unfounded assumptions.

It seems to me that you are of the opinion that only human-looking individuals can be civilized. This is obviously not true, since the quality of being civilized is not dependent on appearance. [Cambridge Dictionary]

I think that Lizards look excellent, including their long necks. Their models and animations are fitting to their species, while their necks help accentuate just how different they. Larian did an admirable job with them.