What do I need to do when the colors of my model look to exposed in a tracked scene?

This is a scene of a project I’m working on. I tried a lot of things with the lighting and the lighting itself looks kinda okay I think, but I can’t get the colors right. This is the first time I’m lighting my model in a tracked scene and I can’t really find what the problem exactly is, and why it looks off. I think the colors of my scene look a bit flat and unreflective, but my model has a lot of contrast and reflection. Some feedback on what to improve with the lighting/colors here to make it more realistic would be amazing!

edit: btw I’m currently using the nishita sky texture as background, since I couldn’t find an hdri matching the scene.