My first (non-patterned) parts!

[Nils Schmidt]

Also I completely missed some duplicated quads. Mostly because LDPE didn't warn me about them.

I will implement a detector for overlapping planar surfaces in the future.
You can also use the random colour render mode to spot flickering areas.
These are normally a good visual indicator for overlapping or duplicated surfaces.

You did a nice job on your first 'real' parts!