JW411, PM sent.
MPN11, no problem. I must admit that my first thought was Polish as well, but like you I saw the same pic in the Wiki Battle page and simply opened it up to its own page (as can be done with all Wiki pics). My bet would be that the Flt Cdr's wife was a dab hand at needlework...
Danny, you may not be able to recognise any of those posing in front of the VV, but you can spot a Mk4 when you see one.
As to mounting Battles from the wrong side, I think that the right side was the Right Side, if you see what I mean?
Oh, and the gubbins hanging down behind the mainwheels are the retraction jacks (see the cutaway Aeroplane drawing previously posted @ 9837)