I like all the red details - and the light looks good. I would try to increase the contrast a little - I'm not sure if it will do any good to the pic, but I would try it...
I know what Aksel means here, the image is a little flat, Johannes. Even with the coloured aspects of the photo, it could help by trying to alter the contrast, and give it a touch more depth. I like the idea of the splodges of colour interspersed though.