It looks like there are some nice long straight runs but I must agree, logging roads are typically in the mountains and more twisty-turny.
Also, where are the industries located? I assume there would be a logging camp with a couple of spurs, a lumber mill, log pond and/or interchange area on a logging layout, but I don't see any part of this layout which features such things--maybe they're not there yet.
It does look like a very cool basic point-to-point, though--lots of nice smooth running room. It's kind of hard to judge scale--are the little marks against the wall 1' or 2' wide? It would seem that you have either 12" radius curves in the corners (if 1') or a 24" turntable...is this HO or N?