What a way to announce

Johanna is having another baby (our 8th grandchild) and she recently found out what the gender of it will be.
This was Luke's way of breaking the gender news to his steam roller / traction engine / railway engine friends at Perrygrove Railway in the Forest of Dean. That is his steam roller by the way, Rosetta.
It's a shot taken from a video that he did hence the 'Play' arrow in the middle.
I'm not going to tell you whether it's a Sister or a Brother for Ruby, you have to guess!