Hey dkid,
They are not really pebbles, they are large smooth stones, in hindsight they probably need a rougher texture so they dont look like smooth river pebbles. The scales is realistic, but they probably need to look more like the attached.
Had a few comments on them, but just didn't see it at the time.
Modelled the house, everything else is stock models where possible as the lighting was the focus of this project.
Cheers for the feedback.