You want suggestions? Ok. Here are the things I noticed:
Both trucks need rim fixes. On Black Ops, the rims are all black, not gray like you have them. On Soldier Fortune, the rims are the traditional Feld gray with the olive-ish green from the body as the color of the beadlocks
Soldier Fortune runs the modern Monster Jam logo on the side with a light gray border instead of yellow and a white outline around that
Black Ops's Monster Jam logo on the side should blend in more with the side panel color
Both trucks run the driver's name on the driver's side of the body in the little space on the bottom of the body right above the sponsor plates, 4 link mounts and mufflers in that area.
In my personal opinion, from what I've seen in reference pics, the Soldier Fortune body can be brighter in terms of color, maybe a tad bit more saturated too. Someone else can disagree based off of venue lighting, but I think it could be lighted up and a little more intense color wise
If you're willing, I'd love to see an uncensored version of both trucks with torrents released with your pack