Is the shading still good with the statues?
Sorry, but no
You are not shading a volume according to a light source, you are applying a random texture.
I think you are referring to
this piece by cure:
It may seem that the structure is not well defined, but it's the opposite: you can clearly make out the volumes of a sitting figure, the face protruding from a rectangle block. Cure has hidden or obscured some parts for our viewing pleasure but he had, and we all can have, a perfect idea of the shape of his statue, and from this shape he was able to derive shading.
This is what you need to do: build (draw) your statue(s) in some detail, maybe as a separate sketch, so you can decide what you will show of it and what you will obscure, for our viewing pleasure
A shading trick might help you: create everything in grayscale, and apply color later. It might help you with shading, volumes, contrast.
I think the farthest back ones may be off.
The sizes look off. The distances are not clear, but I see the 3rd one on a hill some 100s of meters distant, and the last one on distant mountains: so they are way bigger than the foreground one.
They are also not at all readable.
Composition: adding a landscape may somewhat hide the problems I mentioned earlier, but doesn't solve them.
Also the way the left mountain hugs the tree 'armpit' is not nice.