The cloth isn't looking as polished as the rest of the character and I feel that with how stylized and pushed you've made the face, the cloth could get a similar level of push on those folds. Maybe give it a little if the leyendecker treatment.
Tank top looks nicer now, I like the contrast a lot more. The only other thing I can think of for the shadow is to push the width of the light source up in Marmoset
I think you could push the textures of the clothing a bit more - the tank top in particular doesn't read as cloth, it looks very flat especially sitting against the skin which has lots of nice contrast.
Thanks for your feedback Vertrucio! I'm not worried about pants since I think they are just lacking a slightly better lighting. But you are right on the tank top. It is looking a little bit flat and you cant notice form the render the little details I put in it. Maybe I have to push the roughness on the tanktop or aim for…