Event Reward Mod Archive - Is there one available?

I bought AoE2DE a couple of hours ago, but quickly discovered that there were events throughout the year that I missed and seemingly have no prospect of getting the rewards from.

I don't mind this so much for profile pictures, but for the cosmetic mods I'm pretty disappointed. I'm really not a fan of rewards from limited time events, and I'm honestly shocked that this is a thing in AoE2 of all things.

Does anyone have an archive for all of the older event reward mods that are unobtainable now, from menu backgrounds to graphic replacements?

Thanks!