I'd say Pseudomalus sp., looks like P. auratus with that colouration and hairy body, but there are very likely many more species occuring in the area, so its only a guess.
I'd say so, it looks small enough to rule out P. triangulifer (its hard to make out if the flagellomeres are longer than wide or subequal), and it is quite hairy. Cant really see the mesopleuron so there is the possibility that its a Philoctetes sp., but it doesnt really look like one to me.
I'm not sure. This one was about as small as an ant maybe even smaller (Lasius spec.) and has a not so punctuated neckshield. Picture from today, my garden on a climber rose, The Netherlands, Southern part.