UP2037603: Amazing work. The graphics and music combine to give the brilliant atmosphere Rob described below. I'm impressed that you took the time to include the cosmetic aspect of the hats but felt it was a nice detail and well worth it. Using the idea of purchasing particular items to upgrade rather than a simple upgrade button was a nice detail and gave a clear goal to work towards.
I liked that your score is also partially shown in the neighbouring field's bales and that you've got a particle effect appearing on the cursor (as well as the custom cursor). I did notice that the hats don't all sit amazingly on the apple although this was especially prominent on the umbrella hat. The full screen on the web page also seems to scale a tad odd so the water bottle can go off the top.