Hello...
I voted no for two reasons. There isn't any side to side bracing for one. Any side loading...a dog bumping into it, leaning against it accidentally, slipping when doing a water change...the stand will collapse sideways.
Second, there's no secondary support front to back. Much like a pair of scissors, the vertical supports can pivot forward and collapse...right in your lap.
The craftsmanship looks great...you did a nice job. Add some more bracing and you got it made.
Good luck!