critique

I'm new to digital design, teaching myself through AI and books ('Digital Logic and Computer Design' & 'Computer Structures: Readings and Examples'). Progress is slow, and I constantly ask myself, "Am I doing this right?" As you can imagine, it's a little nerve-wracking at times; fortunately...

To add some context to this PCB layout, it's a four-layer board with a signal/ground/ground/signal stack-up. Since the inner layers are just reference planes, I didn't add any tracks and didn't see the need to include pictures of them. I used 0.4 mm tracks for nets that needed 5V, 0.3 mm for...