Spec! Everything is reading as really flat right now. The modeling is nice. But the texturing is really flat. I would add more modeling detail to the machines on the sides as well.
That's exactly what i tried to do, but every time i did anything it looked worse than when it was just a flat color. anyways here's the flat. it's a 256.
I´m exporting the high poly mesh collapsed, not with turbosmooth applied. And is perfectly flat. I´m getting this issue in all the big flat polys not only in that one.
Here is a set of baked maps applied to the mesh as an in-workshop material, still looks 'flat' as it's only the base for what will be the proper texture, basic flat colouration is on just as an example.
Can you post your texture flats? The steel seems like it could be boosted some in the roughness. It's reading flat to me. Modeling wise you nailed it though!