As far as the workspace pix are concerned, I would make the pix look as if you have a professional workspace, and is not some guy working in his kitchen (even if he is.)
The last pic is better. What I would do is take a close up of a 360 board on the machine as if its about to be worked on. The last pic is about like that, but zoom in closer and clean up the board. Looks very dirty. An offset 3/4 view would be more pleasing.
Make sure you can't see a dirty worktable or random junk in the background or carpet or anything.
Something like this:
or this
Looks pro and more trustworthy. Make sure everything looks clean and the pics are well lit and not blurry.