Xmas Theme to an existing zoom/Team background image

Hi.
I have a standard background image for my teams and Zoom calls.
The image is a graffiti image of a cartoon octopus, which I have attached.
I want to add some graphical elements that make it look Christmasy.
i.e. Elves hanging off the legs, penguins skiing down the legs, pop on a father Christmas hat to the Octopus, change the blue background to a white snowy one, Pop a snow ball on the end of a leg, hang a present from a leg, that sort of thing.
This is a bit of humour. Its does not have to be perfect or hang in the National Portrait Gallery.
If it goes well, I would then look at a New Year version, an easter version, a summer holiday version etc etc.