Doesn't look much does it?  It took a ridiculous amount of time!!  I can only ascribe it to a lack of talent(and a lack of knowledge of Krita).  Bits and pieces were spread across six layers and I wasn't very disciplined about managing them so when I was erasing, as I was frequently, thinking something was in an inactive layer, only to find it was in the active layer.  I also spent a lot of time zoomed in, tidying up curves, erasing, redrawing, only to find when I zoomed out again that I had a completely different curve.  I planned on doing much of this as vector lines and shapes; didn't happen.  The heel is the only vector shape I kept.  I guess this whole exercise is good for fine motor skills but I'm not sure it's doing a lot for my eyesight?  Needless to say, the heart motif was imported and tweaked a little for colour and transparency and to make it look intertwined around the heel.

https://assets.kinky.business/media_attachments/files/110/936/018/687/948/209/original/9ca9a372f441a8bf.jpeg