I know this might sound over-the-top on the face of it, but; could this possibly be one of the most heavily themed kiddie coasters in the world?
It looks to have a lot of theming, including some pretty big pieces for a kiddie coaster, and it looks phenomenally detailed throughout.
I know it sounds mildly hyperbolic to say that a park like Paultons could be home to one of the world’s most strongly themed kiddie coasters (not that I’m surprised, mind you; Tornado Springs is stunning!), but this looks very well-themed indeed for a ride of its size, and even Disney & Universal don’t tend to go overly overboard with their kiddie/family coaster theming. From memory, Barnstormer’s theme is quite basic beyond the big billboard, and even Flight of the Hippogriff, which is within The Wizarding World of Harry Potter, probably doesn’t have an awful lot more theming than Farmyard Flyer, if any, when considering its relative size compared to Farmyard Flyer. And those two are also bigger rides than Farmyard Flyer, so particularly when its size is considered, I think Farmyard Flyer could be up there.
Although in fairness, I think Octonauts (as it was directly mentioned) is pretty well themed for what it is, too.