hey arylic,
i have a couple of pointers/ crits about this.
-the nose isnt shaped where the nostril open to where the whole nose goes onto the face.
-your jawline is too round make more straight lined.
-the hand waving in the air, firstly thats some major dissability to have a gap like that in that thumb. firstly it looks like he doesnt have any volume in his hand, thirdly it looks like it is obese
-the teeth make him look like hes buck toothed
-the hair is unnatural in how it just magically goes to strands at a certain point.
-the dithering makes it look messy especially on that hand in the corner
-the water looks like it was done by randomly placed spikes. water is flowing not spiky.
-the bubbles look placed, i was looking at a fish tank filter a while back and the air doesnt go into a ball nor does it squish together vertically its more horizontally
-the eyebrows light source is muddled, dont forget it.
-the outlining, is unnatural and in some places (arm, bits of overhanging hair on the face.)
-i think Rosse's edit was mainly to show you that hes sinking... and so his hair should be grouping up (sorry Rosse if that wasnt the message you were trying to pursue)
-speaking of the hair... in the pool/water your hair doesnt clump, unlike this the hair looks clumped. individual strands.
-the eye wheres the darkness for the iris gone? you had it in earliest ones but it just dissapeared.
i think thats it (sorry if its rudely over-sized list i was trying to get them all so not many others have to post)...looking back maybe more than a couple