dear fahad bhai jazakallah for liking
natty blue comes very good on soild dark colors as its mute flake pops
ur reborn having metalic black so this wax will not come good on it so for metalic black
u can try any of below on properly prepared surface
pinnacle souvern paste wax, blackfire black ice
dodo blue velvet +dodo purple haze
chemical guys black wax
swiss wax onyx
etc
but remember surface preparation is key to get the best and max outcomes 