Hi, Foxdream,
do you also have levels 2 and 3? if so, I'd suggest you wait until you finished level 3 - and then think of repainting (because time feng shui may ask for other activations and even contradict space feng shui). If wood is your fortune color, then it is enhanced by the blue walls and the wooden furniture. I think you should arrange everything in such a way that you are supported. Your house should support you because you are the one who lives in it :-) If you want to strenghten the balance of the elements in your bedroom, then you can also think of some metal objects as accents and place them in the NW of your bedroom.
I do not know if there have been major changes in the FS course because I have an older edition but if I remember correctly, the 8 compass direction are activated in your bedroom, living room and office. In order to enhance the metal element of the Northwest you might think of activating these directions in your bedroom, living room and/or office, using the suggested activations. :-)
Love,
Astrid