He's either a 2nd Lieutenant, 1st Lieutenant or a Captain - Like Desert Fox said, too low res to tell for sure (can't make out if there are any pips on his shoulders or how many 'gulls' are above the 'wreath' on his collar tabs). He's Luftwaffe, that's certain. The medals are a WW1 Iron Cross 2nd class ribbon through his button hole with what may be a Clasp to the Iron Cross Second Class 1939, a Flak badge and what appears to be an Iron Cross 1st class with Clasp to the Iron Cross First Class 1939. Beyond that, I can't tell. I tried searching for a higher res image but can't find anything on the web.
Brookwood
Looks like some medals/ribbons of WW1 vet and possible WW1 Iron Cross?
Possible War Merit Cross and what looks like Flak Badge. Could be a Major.
Just so low res, too hard to tell.
Agreed, I am guessing the local flak battery BC.
Thanks, quite interesting