A lot of my re-draws aren't true ground-up redraws, more like revisiting an old image. These were done because I got better at the art program I use (Krita) and wanted to apply those improvements to older images. When I first started drawing again I had no concept of layers, texture, lighting, etc. When I redo them I also refine the original (such as adding some length to the pervert in the background's legs):
With this one I added a lot of detail. I also shrunk David down because apparently when I drew it I had no concept of scale either. David was very smol in real life and so now he is shown as being smol.
Years ago, though, when I used to draw on paper, it was a true re-draw. This knight, drawn in 1988:
Done again in 1990:
Then again in 1990, this time on a computer using a mouse:
And finally, again in the mid 90's, using a less primitive computer: