Well, I think, really, that I cannot understand what "finished" want say...
I was not totally happy with the ground rendering. A little bit too dark, and a little bit too glossy for my taste...
Today I've used MiG pigment P028 "European Dust" that I have applied with a paintbrush on the ground. Effect is from far better; that was what I really wanted to obtain!
Now, really, really,
...It's finished!