While I love the girly prints we try to get solids in gender neutral colors in case our next one is a boy. (lifeisnotbubblewrapped.com)
Since we don't know what we're having (aside from a baby of course), we went with gender neutral colors of gray, yellow, and white. (thisoldcolonialhome.com)
Either way, we were talking about how we would use gender neutral colors when we do decorate and I really love some of the rooms that you posted above. (christinasadventures.com)