Too thin! Needs more chub and muscle!

Joking aside, really good!

he's fat on the inside :(

You goose

Everybody has to start somewhere? We can't all be born bara.

But I don't know what your end goal was with the picture.
If you really were going for art on a thinner body type, it was all right though obscured by the shirt. Face and arms are all right but the pecs seem slightly big for the body type, compared to the chest closer to the armpits.

It's a cute picture overall, the chest just seems slightly disproportionate. If there is a spot to improve, that is it. I like it.

Different from your usual stuff, but the expression is very good and you make the thinner body type work.

i know, i wanna have more variety in what i can draw.

I like the expression very much...
To me, the eyes seem a little too large....
Along with the tank top. It seems to be a little too tight, since he's skinny.