7' is fine--it's a typical height. Once the shower head is installed it will look more "normal" to you as it will hang lower by virtue of it's design and the angled shower arm. People taller than 6' usually prefer it to be a little higher.
But, congratulations! It wasn’t an easy project, as far as handyman DIYs go, but you have successfully raised your shower head and installed tub fixtures.
After the shower head is installed, let’s move onto the tub faucet, or spout. Follow the instructions that come with your fixtures. For a slip-fit spout, we needed to trim the copper pipe 5-1/8” away from the face of the tile wall. Measured and marked here.
On the exposed shower arm threads, wrap Teflon tape. Only tape the lower half or two-thirds of these threads, though. Taping all the way up the threadswill likely make the tape visible after the shower head is installed.
General shower head installation>>
General hand held shower head set installation>>
Installing shower arms with female threads>>