Thanks, folks. It's a pity apug only allows 800pixels across: this photo really comes into its own well above 1280, when all the detail's text starts to be readable. Will put it up in Flickr at a larger size and share the link here, once the Jan-Feb MSA is over.
The cacophony of colours and detail in this trike is just amazing. I'm sure a conversation with this guy would be incredible.