How to add a custom background image to multicolumn

I have created a multicolumn but would like to add a custom background image to it which looks a bit like the picture down below… please assist me with this asap

Hey @Marshmello_1320

Could you please provide your Store URL and, if applicable, the Password too? Your cooperation is greatly appreciated!

Best Regards,
Moeed

Hi,

Can you share your store url