Personally, I am not interested intro seasons themed avatars or ych, got none myself. But is a good excuse to try something ill bit diferent or have some fun with it

For me the season theme is not that important. If it suits the picture if has some minor influence, but for me the pose, composition and style of the YCH are the main factors when I buy a YCH.

I like when a YCH has the inspiration of that feeling which the holiday is supposed to invoke, but not directly a theme of the holiday. Perhaps that sounds confusing, so I will try to explain...

In the case of Christmas, I would not purchase a YCH dressed in a Santa suit, or as an elf, or as a reindeer. I feel this is silly.
But, if the YCH shows the inspiration which Christmas represents - like warmth during cold times, or having a spirit of friendship and kindness - then this is more attractive.

Or in the case of Halloween, I would not want to dress a character as a witch or a ghost.
But to see them in a scene which feels creepy, or unnerving, or adventurous during the night time hours... this would be something unique and interesting that I don't see many artists offering :D
Like, maybe walking through a graveyard, holding a lantern, and there is something creepy behind them! Watch out!

This I would be interested in :D
...if I had money. Sorry, I'm still broke T^T
But, I still remember the removed YCHs that we talked about before, I still wish to save money for those :3

I sometimes like to grab a seasonal themed one, depending on my mood.

I like seeing seasonal YCH's, even though I rarely ever buy them.