Opinion on girls and boy nursery

MT

I have a 3 year old son, and this is his room (I painted it myself). I want to put the new baby girl in the same room because the other spare room is my office, and I need it since I work from home. His bedroom is very boyish. My idea was to paint a few of these blue squares a shade of lilac, to make it more unisex. Plus, i would get some more stickers like teddy bears etc. What do you think? Will it be okay, or would you put them in separate rooms no matter what? (Then my office would be set in my master bedroom). The baby would sleep in my bedroom until she is sleeping through the night.