Update 12.06.18 - pics of the new board

Not much cleaning done so far. They'll get their proper isopropanol cleaning when fully populated!

Just soldered one of the new boards and tested one, when suddenly: smoke...

It was the MCP1703 and I thought: WTF is wrong, I checked every connection and all the footprints several times.

Microchip uses two different pinouts for their SOT-89 and SOT-223 models:

And I used the wrong pinout for my landing pads... So, I have to use the SOT-89 type on my SOT-223 footprint, which will kind of work:
I just hate things like this. Anyway, SOT-89 MCP's are already ordered.
Everything else seems to work just fine!