"Your Macintosh Startup Disk Is Full"

I've been painting; I just haven't been able to upload the photos of the work in the usual manner because apparently there's no room on my laptop to do anything, even edit the one photo I was able to upload to Photos. I found a workaround solution— emailing the images to myself and dragging them onto the desktop— but I have to delete a significant number of files in order to get things to work smoothly again.

Here's what I've worked on in the last couple of days:

  The Hand Of The Artist, © 2018, work in progress (click on image for larger view)

 

The Gauntlet, © 2018, work in progress (click on image for larger view)

 

  Selfies, © 2018, work in progress (click on image for larger view)   

 

  Somerville Roses, © 2018, work in progress (click on image for larger view)   

Eddie and Jeff, America Series, © 2018, work in progress (click on image for larger view)