i would design kids bedrooms all day if i could!! and if i was four years old, i think i could be very happy in this room. plus that rug - is there anything cuter?!
part of designing a kids room is making sure that the big investment pieces can grow along with your kiddo. i think a 14 year old would still like this bed and the nightstands. the dresser knobs could be changed out (hard to see but they are pink) and with different art, you could have a fun teenage room!
p.s. the pendant and acrylic chair are for a little built in desk area - seems random if you don't know about that piece!