Nice Pictures ! … i specially like the terrain textures and details. The Jeep also looks good.
the caravan is in that old, used look but there is in my opinion to less “Dirt” and “Dust”, maybe you can also settle down the roughness of the “glasses” a little bit… and higher the metallic of the caravan texture.
looking forward to more pictures 
Some pictures… i am still working at my charactrer in , marvelous designer and also in substancepainter… still a lot of work and to learn for a satisfing result…
today i tried some thechniques in substance painter…
two pictures could go a little bit in the direction of nsfw , that’s why i have put them into a spoiler.
clothes are in progress too …
SPOILER anatomy of body…
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