Nice work! And your dog did all that?
If we could get a close up shot of the foilage and ground cover, perhaps we might have suggestions, but it looks great from those views.
I had my black and tan chihuahua "Fido" at the vet the other day and there was a mastiff there, so I told him not to put it in the dryer after washing it, implying that's why Fido is so small.