Excellent job on the solder and wiring. Looks like you really got it down.
I highly suggest both the Tone TwEQ for so many builds also including Reverb, Compressor as well as the obvious Dirt and Fuzz applications and I use a Silent Tuning Buffer board myself.
Most people when they start out invest in a One-Spot power supply as they are affordable and have features helpful to proper pedal sharing. I once had 19 pedals power by one. Honestly you would want a decent isolated power supply once you have over 10 pedals though to prevent noise and cross-talk. Current draw on dirt and Fuzz pedals is minimal. <20mA
You can never go wrong with a Tube Screamer but an Aeon Drive is a great (less bloated) version to consider.