Thanks for the positive comments peoples. I have a for more units to get photos of but am waiting on a few basing supplies to finish them off ( I am not really a work in progress photos kind of guy).
As for repeating crossbows, historical concensus is that the ancient Chinese invented them. The oldest evidence predates the Qin dynasty (terracotta army), and they were known to be used widely in the Han Dynasty. The weapon continued to be used in pretty much the same form across a wide time period.
In order for the ratchet arm to draw back the string quickly the bow arms are relatively low tension, so the projectiles don't have the same range or power as a traditional european crossbow. But with a firing rate of 15 bolts in 10 seconds and being relatively easy to make and operate ( Yr 7 students at my school make them), they are great as skirmishing weapon or to arm untrained levy troops with.