I agree with what was said already if you feed more vegs poo will be darker and wetter one of my rabbits eats lots of hay maybe twice more than others so her poo is usually very light and greenish but when I give her vegetables poo is darker, almost black. Dried poo is much lighter I also agree with that. Your photo shows normal healthy poo, well done.
Besides, my lop girls are bigger and their poos are larger too, I've two males one lionhead other dwarf/lionhead, their poo is much smaller and drier.