Went to look up Callie and Marie cause I remembered the names but wasn't sure who was who. Noticed their outfits were different from one another and wondered why only one looked dressed for New Year's. According to the images, that's their normal outfits right now? I guess only Big Man decided to dress up special for the occasion with his dapper-looking top hat and bow tie.
It's a fair drawing and perfect for the holiday. Most of your other uploads have some level of artistic ambition added to them but this seems rather straightforward. A shame there's not more interaction with the three in the back though I assume you just included them afterwards to help fill out the drawing. I'mma guess it's the ol' "I already came this far, so I might as well keep going with it" sort of mindset that I, too, have often at work when I'm closing things down for the night. You're finished with it, but you're not finished-finished with it and, therefore, it's not finished.