Hi Paul.
So sorry to hear of your loss. I've lost both of my parents, over the last 13 years and can understand how you must be feeling.
It's good that you've managed to get back to flight simming (or any other hobby). Part of the healing process, is to give yourself a 'distraction', as this lets your mind rest for short periods.
What a wonderful photo of your Mother.
I only wish that I could shed some light on the aircraft type, but my only guess is that the exhaust stubs indicate a RR Merlin.
Treasure your memories!
Regards
Kevin
[Edit] Looking closer at the photo, the following observations are noted.
It appears that she is standing on the wing, the leading edge of which is below the rear of the engine. There is a long front fuselage, with no canopy visible in the photo. The 'nose up' attitude of the aircraft would indicate a 'tail dragger' and, considering the other observations probably a fighter.
Looking at where your Mother was leaning, seems to show a 'flat' top to the fuselage, along with flat sides. A short 90 degree curve joining the two surfaces.
Retaining screws are visible both above and below the exhaust stubs.
From the above, my inclination is to say a Spitfire.
The following photos may confirm my thoughts. Look at the retaining screws above and below the fifth exhaust stub -
http://www.newforestfitness.co.uk/wp-co ... itfire.jpg
http://planesoffame.org/temp/HighRes/POF-Spitfire-2.jpg
Also, in the second photo, a retaining screw is visible above the sixth exhaust stub, but not below it.
If those retaining screws are at the fifth exhaust stub (in the photo of your Mother), it would indicate that she is stood behind the sixth exhaust stub and leaning forward slightly. The leading edge of the Spitfires wing would fit this very well.
I can't say for certain, but the evidence seems to stack up.
Kevin