To be honest your kilt looks just a wee bit too short for my taste, my limit would be the top of the knee cap and no higher. If you wear it at the same height as the top of your belt then it should be just right. People talk about wearing The Kilt at the regimental height, but don't forget that army kilts had a much higher rise (the amount of material above the waist straps, which should be buckled up just above the hip bones) than civilian kilts.
BTW that Morrison tartan looks fantastic!