Sump - Vote, good/needs work

[Treenk]

I’m remaking the sump my tank came with I have stripped it down and resealed already. This is my design... Is it good or am I missing something or should I take anything away.

 

[Treenk]

Pretend middle is top view (dark lines are attach to bottom). All sides fold over like to make a cube.

 

[Treenk]

This might help a little did a quick mock of it skimmer stand isn’t what I’m going to use it obviously doesn’t fit had to move the cardboard to get it in. Those obviously won’t be the plumbing just to show where it is. And the ATO will be with the pump.