Creative(?) underexposure!

Woke up with a bad sore throat and didn't feel like doing much but I'd been reading about this Creative underexposure and the sun was shinning brightly into the room so I took a few shots at different exposures and went back to bed!!
This is the result as I changed it in the develop module in Lightroom.
This is part of the challenge set by Markus on Experimental Photography - exposure.  Not very artistic but I wanted bright colours for the Colour Month Challenge set by David Hobbs!  I find it interesting to see the changes in the colours.  The whites have become blues!