Whatever storage device you are using, this is the right time to clean it up.

In this challenge you have to either finish any unfinished and yet unsubmitted challenge entry from 2023 or make a new entry for a challenge from 2023 you wanted to participate in, but couldn't.

You can make your choice by going to Weekly Challenges and checking the column on the right. The first challenge of the 2023 was "CMYKaboom!". Please write in the artwork description which challenge you have chosen, and make sure you follow it's rules and limitations. You can make more than one entries for more than one challenge.
 

Canvas Size - see the corresponding challenge
Colours - see the corresponding challenge
Transparency - see the corresponding challenge
Animation - see the corresponding challenge