Great first BYOC experience BTW, I'll post in the build section too. One thing that strikes me with many of the BYOC builds is the very thoughtful mods and additions that are real improvements on the circuits while maintaining the reason they are popular in the first place.
I noticed an error
that was noted in 2017 as well.Going back and forth between the layout image, schematic and a very helpful spare PCB it looks like the Op amp "a" and "c" of the TL074 are swapped between the PCB layout and schematic.
Also,
Peel-a-way sockets for the IC work and fit well, barely raising it at all. I've used them so much for other projects though that I can't really judge if they are beginner friendly or not. I got them
here but maybe they can be sourced elsewhere.
Thanks!
Edit: BBCODE isn't my native markup language...