Great smudging, maybe add a lightsource since you can see there's light coming from somewhere on the focal?
Nah, I don't think. I would write a tutorial if I could, but unfortunately this style of smudging is not something you can teach. It takes experimentation and time. However, I'm more than happy to part with my settings. I use very large spatter brushes on default settings at 95% opacity.
make a version without the text, i think it will look alot better but is nice as it is at the moement though.
The colored version looks great, the smudging looks extremely nice. It needs more of a light source though.