COLOURS >>>COLOURS>>>>COLOURS???

My Backroom has been in shambles for years now...I have painted walls that just arn't finished also my floors are half painted. Having a room that I practically live in unfinished is starting to bug me. Hence why I'm trying to complete it very soon. I bought corrigated iron to go down 1/2 the side walls of the room. Now is the time to pick the colours..arhhh stay white greys, 
Go a bold red pannel...Too many choices???
Here are my samples ... I have a lot of green/ red in my scraproom and also furniture in room wooden balinesse... What do you think????