Hello! The piece looks good, the only thing is about materials. Generally speaking i'd advise you to take a look at things separately, like doing some studies on leather and some on clothing. Every material has its levels of reflectivity and texture, and the only notable issue here is exactly that the clothes are rendered with the same level of reflection of the leather, making it hard for you. I tried to make some spheres with colors similar to the ones you have. They're quick, but i hope they can get the message across. Lastly, try to build your values slowly, cause it will be much easier adjust what you don't like! If you adjust just this tiny detail you're good to go! (and sorry for the really bad english, not my first language XD )
