Pseudonaja and Oxyuranus are very closely related. I have a lot of trouble telling them apart in photos like this, especially with this pale coloration, and with the blur and angle making it hard to see the head and neck shape.

Good call....but I think they're coastal taipans? The back one is too blurry to tell anything, but I think the large scales behind the eye are more taipan-like (taipans have more) but it gets kinda blurry there so I'm uncertain.