Hope you like it. Plz don't use this as a background, I spent hours (and I mean hours putting this together) This is my creation of photos from the internet, I used basically every combiner/editor/and any other free online photo editing app available. If you want something like this create it on your own, (keep reading if you want to find out what steps I used to make this.) I mainly used google slides to combine and insert images. Making the images "fit" together took forever (especially with the cats) so be sure that you have a lot of time and are not using a school account (if you are a student ofc). Then I would combine them either using LunaPic or other editing software. (LunaPic was the best and easiest to use editing software that was free with no downloads, highly recommend.) Good luck and be creative!
Thx to @TheWonderfulWalrus for the competition. The internet. Any amazing artists and photographers who's images I used. LunaPic the online editor, which again is by far the best free, online, no signup's website. Google Slides for allowing be to insert backgrounds, mess around with images, and format everything. And finally to any other online software I used.