Looks great! On my repairs I use this super glue called Pasco.
Forget about it. Hands down the best mending agent I've ever used! 30 bucks a bottle on Amazon. It's even stronger I find then two part epoxy. Dries in seconds. So fast that I've glued myself to the project and the work bench multiple times. I usually glue what I can or have back together, then fiberglass it, shape, then sand, Bondo then sand, prime, sand, then paint. This way I'm not trying to figure out how to mount any plates like the one you used in the corner. Not that it's bad but I did the same thing where I was mounting a filler plate with screws inset in the plastic to only have to hide them with filler. Using fiberglass as the filler eliminates the need of the plate. And it's Strong AF!
Either way looks really good and solid and that's what counts.
For those of you who purchase Pasco. BE CAREFUL!
Funny story...
I was fixing a trash compactor at a neighbor's house. He asked if I had anything to glue a tab that brook of his ice maker. I brought Pasco told him it's the strongest glue I've ever used but you need to be super careful. I went to go grab a tool from my place when I came back he had glued his fingers together and the ice maker tab piece to his hand. Haha had to cut them apart! Stuff is no joke! He said I thought I was being real careful... You know immediately if your not. I've learned applying it to a toothpick or coffee stirrer then applying it to wherever your gluing is the best route to go.