Keith Walton (of the Severnside Community Rail Partnership, who are sponsoring this artwork) confirmed to me on the platform this morning that these silhouettes are being painted by year 7 pupils from Backwell School. They have yet to be finished, and they will then be given a covering of anti-vandal varnish (the pictures, not the pupils).
I believe the idea is to involve students in their community facilities now, so as to try to instil them with some pride and hopefully reluctance to turn to vandalism or graffiti in their teenage years?
Beat me to it, Chris. I was on a tour of the school yeserday morning and the Head proudly told me of the work. I didn't have the heart to mention the paint runs or the grafitti scratched into the paint already. They were silhouettes of reception children at an infants school, so in that sense were paintings of four year olds.