Thats pretty nice, I must admit, im a bit jealous. That looks like a pretty good schematic, it even includes specific part values, and the calculations.
I have been busy the last couple days strugling with my NPN transistor cube design. I accidentally smoked a few test parts (good thing for off board testing!), and my measurements are not what I had expected, and I think the parts I have, may not work well for what Im doing 
I have considered re-designing it using n-channel mosfets instead of bjt. I think maybe 12 LEDs maybe too much for one sot23 2222 BJT NPN.
Im starting to like your design better, since mine isnt going anywhere quick!
Have you figured out Your BOM ? I hope this is close:
Nine TPIC6B585 shift register ICs
Nine .1uf ceramic capacitors
Eight 220 ohm resistors
Eight NDP6020P-ND P-channel mosfets
Eight 5k ohm resistors
Sixty-four 82 Ohm resistors
Five-hundred and twelve LEDs
Six-hundred and eighteen parts. That sounds like a lot, but its mostly the LED and resistors.
Wire/patience/skill...