frames?

I would love to frame these illustrations (the forerunner for fireplace decor), the colours are washed out in these pictures.





I can only afford IKEA frames right now, so here are the frames I am looking at. If I go with the birch (to match the floors) I would probably use a white mat, or I could go with the black frame (to match the frame on our our screen print from SF).... but I'm not sure.





The fireplace is being painted either brown or a pale grey/robin's egg blue (I can't find colour samples online yet). I really like red with aqua, so our furniture should match nicely, also I' kind of like pale blue at christmas for a "frosty" decor. So I'm leaning that way more than the brown.... we'll see though.