Two posers at once?
Regarding the lovely photo with Ansons, a Bulldog, Walrus (Seagulls?) and a Moth Minor, I doubt that it's Point Cook as I can't fit the "L" shaped configuration with the hangars in the background. Not very far away at Laverton, perhaps?
The second shot is Serpentine, WA.
If I've got both correct, then Open House please.