How to fit main body to image

May I please get some help with fitting images to the body of my profile?

I am having issues fitting my main to my image. I want my main to be the exact SHAPE of my image. I made my image transparent around the borders just for that purpose, but it’s loading a white background behind it. How can I make my main fit the shape of the image?

I have my current code right here. I have tried looking it up but I only find posts about just loading and sizing images, not fitting the shape to the main.

background-image: url('https://file.garden/ZXkBVsPK2V9jjGOw/UPDATEDSIZED1.jpg') !important;

    background-repeat: NO-REPEAT !important;

    background-position: CENTER !important;

    background-size: cover !important;

You can also go to my profile to see what I am talking about. Everything else looks like trash at the moment because I am in the middle of decorating. But my biggest worry is about the main. Please help if you can!

Thank you!