Floating Image between Footer Sections

Site URL: https://iris-paddlefish-tpfn.squarespace.com/

Hi, 

I'm trying to float an image between my top and middle footer sections.  I've added the following code but the image remains behind the middle footer section.  There is also a small bit of code that I've added to remove a white space (margin) that was on top of the Instagram section.  Not sure if that has something to do with it but I've included it below as well.  Any help would be much appreciated.  Thanks

div#block-yui_3_17_2_1_1605754328283_4716:after {
   content: "";
   display: block;
   background-image: url('https://static1.squarespace.com/static/5fb20bb998d0ea21e2c279cb/t/5fb5ec7b493ec905fa2f017c/1605758075338/Namaste.png');
   background-size: contain;
   width: 250px;
   height: 160px;
   margin: 0 auto;
   margin-top: 0px;
  margin-bottom: -100px;
  background-repeat: no-repeat;
  overflow:visible!important;
}
 

//Remove space above Instagram Block//
#block-yui_3_17_2_1_1605754328283_17909 {
  margin-top: -80px!important;
}