Very cool .....
Trying chroma key? You need a stark contrast colour behind you (blue or green works best) then shove the lights onto the screen (not onto you) ... it lights the backscreen and allows you to key out the colour with sharp lines around you. Sometimes, on TV, you can see the back of an actors hair lit up from behind ... this is to further define the line(s) between the actor and the screen for better chroma key definition.
It is a bit of an arse but once you have it ... you have it.
Nice job bud.
Ian