I can see we are looking forward towards the darker days Stephen.
Guess when you are on bread and water you can easily use the dining room as a studio.
Brollie used as in image 3 provides an economical softbox. I see you managed f20 at ISO 200 which is quite impressive.
If you see a decent s/h flash around guide no 45 or more, that can be remotely triggered at full bore, you can recover your SB800 for fill in.
For future reference it would be nice to see a pic of the flash mounting in use on the stand.
Don