That's a gorgeous tank. I just don't have the patience for saltwater, and I'm down to only 1 40 gallon freshwater tropical.
And what an adorable puppy!!
The 2nd one looks pretty dark to me, but the subject is interesting so with at little more brightness or fill light it would look really nice. That said, I prefer the processing on the first one. The sepia tone makes an interesting photo even more interesting, at least to me.











