The black background is a little trick I learned from a mate.. Its basically a piece of black suede... It sucks the light in and doesn't reflect it back... I then do minimal editing... I have the same recipe... Add a bit of contrast, drop the brightness if it needs it... Drop the shadows and it makes the buds pop. I sometimes put an insta filter on but some of them are a bit much.. Hope that helps mate... All my pics are literally smart phone only.. I haven't got a proper camera... I use free apps for adding graphics