The palette is beautiful and calm. Petrol blue sky with huge flat lilac clouds, brown earth islands with grass on top. That purple and turquoise contrast is unlike anything else in this jam, which was dominated by neon and black. This one makes you want to stay a while.
The hints appear at the right moment, inside the game: walk near a field and "Plant something on a field with P." shows up, then disappears when you move away. Along with a couple of other entries here, it's one of the few that teaches without a wall of text. The inventory bar at the top, with items drawn inside wooden frames and quantities beside them, is pretty and clear. And having trading NPCs in a seven day jam is brave scope.
Real credit for thinking about non US keyboards, too. Your page says arrows, WASD and ZQSD all work, and ZQSD being the French layout is an accessibility detail almost nobody remembers.
Three notes. The game only responded to the keyboard after I forced focus onto the canvas, on my first attempts the arrows did nothing, which is probably the classic "first click gets swallowed" case. It's also hard to see where the next jump is, because the lilac clouds are as solid as the earth platforms, so you can't tell what's ground and what's background. Making the clouds more transparent would fix that immediately.
And an honest one on the jam theme rather than the game: I couldn't work out the high score connection. The number at the top stayed at 0 and the whole thing feels more like calm progression than score chasing. That's not a flaw in what you built, it's genuinely pleasant, it just sits a bit outside the brief. Of the relaxed games in this jam, this was the nicest to look at.