BOFFO! This is the fishbone layout I was expecting to see more of when I saw the new SRX form factor. I also love the great use of the "twisted wire" technique of making long wires fit a small space. I've seen it done (actually watched it being performed at what a magician would consider "close"), but have never mastered it. That one of your students got this good by looking at results on reddit is amazing.
The one improvement that occurs to me (and please consider it as constructive) would be to shorten some runs within the board and simplify some runs off the board by moving the 'RIO and breakout panels sort of like
this.
OBTW, I'm assuming that you realize that the PDP
Distributes power, and doesn't actually create it. I added a large red and black wire to my image just in case ;->.