Looks OK to me chap
I'm busy building my own loom from scratch too on my McSorley +442 (stretched Ron Champion Locost). Got the dash wired to a couple of connectors so it can be easily removed. Got to set to now and fit the rest of the wiring to the chassis. I spent about 4 days designing the wiring diagram. Thought it would be better to work from a diagram rather than wire 'on-the-hoof' and then try and draw a wiring diagram from that.
JB