Great looking pictures wvmrodder!
The truck & trailer are very colorful, should catch a lot of views if you decide to enter it in a contest.
Did you add air lines from the truck to trailer? Its a detail sometimes overlooked on big rigs. A fine insulated blue & red wire wrapped around a needle or such can replicate the coiled air lines well.
Another point is chrome plated rims are more accurate if painted bright silver. Aluminum can be polished to a mirror finish but this finish does not last long, at best its clear coated and still a tad duller than actual chrome plating. Don't change it now, just a consideration for future projects.
Thanks for the better photographs!