Series 2 is here!
Three additional skins for every weapon! There’s now a total of eighty-four designs. Plus, they’re available as a functional mod.
See the title post for the designs and download link.
Ok, so I couldn’t help myself.
This second release started when people started asking me if they could use these files as in-game weapon skins, and then the Mod Tool got released which made that really viable. So I started porting them over, and I had a few more ideas, and… I got carried away, frankly. 
I created this second season to a different set of criteria than the first ones. While the originals focused on edits that were (mostly) designed to be achievable using in-game modulation and additive effects, this series was more liberal with that and instead tried to keep things that would function effectively as simple file swaps.
In other words, implementing Series 2 skins as official content would, on average, take more memory but less code than Series 1 skins. There are some exceptions, of course.
I did still want to remain true to the art style of the game and creatively limit myself, so believe it or not, all Series 2 skins are in fact created using edited Chicken Invaders sprites only. No stock photography or other sprites were used, just fancy effects. They’re also designed to look better in motion, generally - as I was able to actually test that, this time around.
And yes, I recognize that eighty-four skins is a ridiculous number and not at all a viable suggestion for EA content - but I figure that the more options I provide, the more likely it is that some of those will be viable additions to the actual game. As always, these reskins are a suggestion first and a mod second.
Huge thanks to @VerMishelb and @Francis for teaching me the ropes of modding - this wouldn’t have been possible without their help. And a massive thanks to everyone who has supported this idea - the first version of this library was just made in a single day as a kind of fun project and I wasn’t expecting people to love it as much as they did. (Admittedly, that did kind of make me go overboard - don’t worry, there won’t be another poll this time. )
All that said, this has ended up consuming way more of my personal time than I ever intended for it to - I set out to make a quick bit of concept art over a few hours, and have ended up spending days of my time to create eighty-four designs and seventy-three functional mods. I’ve enjoyed it a lot, but I’m well and truly tired of it now, lol. That’s not to say I won’t ever release compatibility updates or minor polish, but I’m not going to guarantee any support down the line if an update breaks these mods, either. And definitely don’t expect a Season 3, sorry. I’d like to be able to actually play Chicken Invaders next time I’m in a Chicken Invaders mood. 
All that being said, I hope everyone enjoys this update, and thank you all again for your encouragement and excitement toward this library! It’s very much appreciated.