Lol, Thanks for noticing me 
Just some feedback from my experience:
I was XS-741F Heavy in the 787-8 with the Boeing house livery btw.
Note: all this feedback if based off of the info I learned while reading the ATC manual and watching the ground/tower ATC tutorial videos in prep for the IFATC written test (I’m probably going to take it tomorrow). I strongly recommend that you look at both as they made me realize how much I had been doing ATC wrong since I started controlling.
When you clear someone to taxi to a runway, you are also clearing them to change frequency when they are holding short and ready at the runway. You do not need to tell people to switch to tower when they are close to the runway (you did this to me), they will switch themselves-- the exception is that if it is busy and they have been holding short for a while without switching.
There was no point in telling me to line up and wait on the runway when the aircraft ahead of me was already airborne, you should have cleared me for takeoff. The other aircraft and I were both in 787s so separation wouldn’t have been an issue (if it was a cessna 172 then making me wait a little bit would have been perfectly fine)
I still don’t understand why you told me I was approved to change frequency after you cleared me for take off and told me to make left traffic. Don’t do that; you want aircraft that are in the pattern to remain on your frequency.
Once I was on left downwind, you should have cleared me for the option. Instead you waited until I was on left base to clear me for landing, despite my request for touch and go. You really should have cleared me for the option. The conditions for pattern work were still fine and the pattern only had me in it so its not like it was full. Clearing for landing does not clear me for touch and go. In general, clear aircraft in the pattern for the option.
That being said, you were fine in everything else concerning the controlling of my flight. Honestly, I made the exact same mistakes before I read through the manual and watched the tutorial videos so I encourage you to look through them and I hope to see the IFATC in your display name to actually mean something one day (meaning that you actually will become an IFATC)!