

This edit took me a bit longer than expected, so I hope it helps! For environments like this it's important to group everything into their own value groups, you also want to think about where the most contrast should be (most contrast should ideally be where the focal point is). So places of less interest give less value contrast (like the clouds or mountains) and areas of interest give more contrast. I have always been a big proponent of strong, immediate reads and it's something a lot of environment artists do so I think you want to be able to tell what the big shapes are.
Your clouds and elements should not be randomly placed or sized the same they should be placed with purpose and size varied to give the illusion of depth. They should also be repeated. Don't just put one statue, put multiple and use it as a way to point to the focal point/destination in this case it can also help give depth because it's size reference. As for the clouds, you also want the clouds to point towards the focal point, not randomly placed about. You're directing a scene here, a composition, you're trying to guide the viewer on where to look.
I didn't do it too much here since it's simply an edit but typically you want more detail for what's closer to the viewer and less/simplified detail for things further away. You want to think about the narrative as well- the snow element could be pushed why is it only in one area? These are travellers that have been on the road for awhile correct? So they'd like encounter snow they're obviously cold. You can use the cold exterior to contrast with the warm exterior of the wagon. Where would snow fall? Where would it stay? Etc. You're telling a story though this image so utilize that. Having multiple statues is also a way to show what kind of city this is, maybe the statues are purposely used to advertise which way to go for these sellers.
Something else I didn't do here too much but you can keep in mind is where you put your saturation. You usually want more saturation for focal points and less for areas that aren't focal points. The sky in yours right now is super saturated and has some varied values same with the mountains. Don't forget atmospheric perspective is here too!
I hope this helps, excited to see the next update!
PS Thinking about it, you could add breath fog to the animal and make sure it has snow on there as well. I would've added it but didn't want to spend forever on it.