Not bad
The route you took seemed to be well planned. However, at times it looked like you were a bit lost (but yeah, the Knytt world is easy to get lost into). Also, too bad for the big jump over the water (is it technically feasible, by the way).
If you're interested in the rules for 'official' speed runs of the game, someone submitted a run on SpeedDemosArchive once (you can see
the post about it here), but it got rejected because the runner didn't use the secret passages and warps; it also seems the 'cheats' you used weren't allowed, but that could be a matter of discussing it more in depth. Twin Galaxies doesn't seem to have any runs or discussions about Knytt.