Here are some of the examples.
After checking, the non-winter originals with a red dot have been drawn the 13th (this month) and their counterpart have a red dot but were started after the jam, and those with a green dot were drawn the 19th for the originals. I removed some of the ones I think were lower effort. There are transparent pixels in the middle of the snow, that'll be fixed (it's planned, just didn't take the time yet, i'll check everything at once tomorrow).
I guess the flowers and shrooms are the lowest efforts among them all, even though I had to redraw more than what may appear at first glance because I didn't like a simple recolor result (can be seen here and there).
I'll gladly remove those with the red dot if asked, no problem with that, and I'm already happy my little sign can enter because started a few days after the jam for the original (and even after for the one in the snow). I don't know if I'll include the original though, it could be useful to have with its counterpart but I didn't do the first one with winter in mind.