Just got to doodling one day and decided to do a sort of rough draft of a merman if I came up with years back.

Lol I never did give him a proper name so he still has the placeholder name of Azul. (Cause he from around the Iberian peninsula).

He is all shades of blue, even his "skin", and with the help of a little magic at times can appear mostly human. Hence the thing tied around his waist. To give him a bit of modesty when he does.