Great!
I was pleased with mine but yours are certainly inspiring. I suppose they are the new US infantry castings, the original ones were a bit hit and miss for me (some great figures some less great).
I think I will skip the Brown Water stuff, tried to do them in 15mm once (PP PBR and Scenic Effects ATC and Monitors) and I realized that, while from a modelling standpoint they are very nice from a gaming standpoint you need a giant table to really get in a full action. Your river will be too short for anything similar ot iconic action as the Rach Ba Rai. Still they make a good backdrop for a river landing (but you have alraddy ran the gauntlet). 6mm or 3mm are more reasonable scale for the river gauntlet themselves.
On the other hand a thing that I want to do is small action with my PBRs with their mobile checkpoints and Junk chases.
Arrigo