Well, I for one like the tank and cannot wait to see the fish in their 125gal tank! Those pics are better then anything I can take lol.
As for the betta bowl. IMO, you should get a small 5gal tank, even if you have to bring the fish home to do so. Betta are possibly the must under-cared for fish that aren't in the carp family (goldfish). They often end up in little tanks and get few water changes, which is pretty much a death sentence. So long as you stay on top of WCs (once a day, at least) for the betta it would be okay in that little bowel, but it should be in a larger tank then that. And one with a real filter, that would really help the betta.