Guess what! UPGRADE TIME

[daplatapus]

Lookin' good! Always a good feeling doing stuff like this yourself and having it work the first time. Congrats.
Not sure by the pics, but just a teeny suggestion: You may want to provide some support for some of that plumbing. Install support blocks under the return plumbing so that the weight of the piping full of water isn't torquing on the bulk heads. For the drains a hangar strap across the piping where they elbow under the stand would be easy too.
Other than that, well done.