I'd seen clips of Grainger the pianist but had never really listened to one of his piano pieces. This one is certainly an idyllic and charming Old-World sort of tune, and I think you have a nice feel for its rhythmic ebbs and flows.
My primary overall suggestion would be that you listen more clearly for the pedal changes, which are a bit muddy in places. No doubt that's difficult with the frequent harmonic modulations, but in some cases the foot has to keep pace with the fingers
There also seemed like some hesitation and uncertainty at certain points (e.g., between 0:36 and 0:41) and a few other passages where the rhythm seemed ambiguous and I was having trouble following the general pulse (two overall passages I noted were between 2:00 and 2:30 and 3:25 and 3:55). Could just be that the second half needs to be a bit more confident in terms of the rolls and stretches.
None of this is serious, though, just suggestions for polish. I enjoyed listening.