Looks cartoony, given the black cavities in the texture. If that wasn't the intention, I'd recommend removing the cavity contrast. But as a cartoony cookie, it looks good!
Thank you for your feedback guys!You're totally right it looks too cartoony for now and it actually wasn't my intent.So I did some fixes. I decreased AO in cavities as you said, added more roughness variations, and changed background.And yes, it works. I think now it looks more realistic.