Think the orange one is Kellen Leblanc's (ex Masi product manager) older custom build around an older 2016 Speciale Randoneur 700c frameset and a likely one-off sample paint job.
Think the yellow and teal ones are paint samples for the Masi Giramondo 27.5
I think it was a protoype sadly I did manage to find two more photos if anyone can recognise it
also the yellow frame in another colour; its basically an awol