That looks incredible
You must joking or watching a different video to me.

bb1
Getting closer to BIR, like your base, but this is still an oily/gloopy heart attack.
I suppose you can give a curry any name, but can't see why you call this a Rogan Josh.
2 tbs of Pataks mixed pickle would make any curry an Achar (pickle curry) as its such a strong flavour.
Then you add Tandoori flavour, plus cream and butter,
(but you forgot to add the Mars Bar)
Anyhoo, Not a Rogan Josh, but keep trying and having fun