It does look like a juvi brown... certainly a lot more than it looks like an Orange-naped Snake. The dead give away to its true identity is the pointed snout, which both your local Delmas have. Browns have a well rounded snout (while Furina are somewhere in between). I can guarantee you that the dark lateral mark forward of the last black black band on the neck is actually the external ear opening. Unfortunately the quality of the photo does not allow it to be clearly distinguished from a black surface mark.
I’d go with it most likely being Delma borea due to the discernable orange tinge on the dorsal surface of the cream (or white) bands separating the dark head and nape patches, which is not present in D. tincta. They can be distinguished more definitively by a simple scale check on the snout, but that ain’t going to happen...
My understanding is that northern populations of D. borea are sharply marked as juveniles but do significantly fade to the colour of the rest of the back as adults.
Blue