Quite nice Neolight. Adding a rim light to your scene may help pop out details. In you're concept work it really helped sharpen the image. I feel like your color pallet was a bit more vibrant and varied in the concept as well, adding more reds and yellows to your sky would really help the background feel less flat. Keep it…
man this is really looking epic. I don't know if your thinking about it yet, but have you been playing with specular maps to differ between the surface materials?-- donno if that's going against your over-all aesthetic.. also, I noticed in your texture flats that you might need to pop some edges into the wood and metals--…