Would you change the framing? Some folks seem to think it needs less head room. My thinking was the bud was still growing, thus needed space.
I would leave the framing as it is. In my opinion, but it's just me, cropping the top of the frame would make the shot like there's no breathing room. The sides are already "tight" so having some room at the top counter-balance those sides.
Your thinking is just as valid, of course