This is going to be a southern hemisphere centered challenge (at least for a few more decades).

Pixel a Christmas landscape or a scene during hot summer weather. You have to include a beach or any body of water like a sea, a lake, or a pool. You have to include any festive elements so the winter holiday season is recognizable. Any religious, cultural, or social observances alternative to Christmas that take place during the winter will count, as long as they have some recognizable attributes that will work with the idea of a combination with summer. And you have to use the Wintercode palette.

Canvas Size - Max. 360x240.
Colors - Max 36 (use the palette).
Transparency - No.
Animation - No.