[Miguel]

8/JG3:
Numbers are usually square shaped. Band is narrow. It seems improbable.

This aside, it could only be Franz Beyer (20th on 15/07/41; 21-24 on 17/07/41).
Comment: the 20th bar is already painted, so the celebration is more according with getting four victories in the same day.

8/JG51
I do not know any photo of the 8th in 1941 but in 1942 the numbers are square shaped. The bar is always white and the band narrow.
Improbable, as well.
Only two candidates in the 8th:
Fritz Stendel (19-21 on 08/10/41)
Bernhard Lausch (20 on 22/10/41).
The clothing of the people cheering does not fit with the Russian October.

8/JG52 and 8/JG54
No third Gruppe bar but wavy line.
No sense to continue

8/JG53
Same type of number, bar and band.
Candidate? only one:
Herbert Schramm (20 on13/07/41 and 21 on 14/07/41)

8/JG77
No third Gruppe bar. Dark camouflage. Narrow band. Small and square numbers. Improbable

Resume: Everything points to 8/JG53 and specifically to Herbert Schramm.

Unless the photo was taken in 1942...
In this case, all the physical details given before continue being valid. The only difference is that 8/JG53 was in the Mediterranean.

Saludos.
Miguel