have the dark colors blocked in. Also the grays for the wood with light blending in with darker grays and brown. I did a small section to paint shadow over the gray while it was still wet. Doesn't work. I also did a small section where I just painted the shadow and the wood grain without the gray base and it worked better, but the color was off.
So I wiped both small section off. I have most of the gray and blending done, Once complete I will work on the grain after the gray dries. Then the dark gray grain and cracks, etc.