Notice it is a Polish squadron Spitfire.
and ? (you fail to properly address the "observation", leaving a few options)
It is a 317 sqdn Dywizjon Myśliwski "Wileński" - Vilnius Spitfire Mk. VB (It is JH-H). Don't know what you're trying to "point out", but the 317th fighters performed sweeps of Normandy on June 6th, 1944. They also were ground attack for the remainder of the war for the Allied troops.
Kind of like French jokes, they long ceased to be funny. Especially regarding the circumstances. JH-H served with No. 317 Squadron between September 1941 and March 1942, when it's career ended through forced landing near Bolt Head, Devon while short of fuel on return from the fighter sweep over France. IIRC the photo was taken near Northolt, England.
http://www.polishairforce.pl/dyw317zdj.html