Just a couple things I observed so far. I was C-PIAZZA, sorry I couldn’t give you the full checklist. Received a phone call :( 5,000ft is just a tad too low personally for a transition with the airport at 2871ft. Aircraft in the pattern would be flying at 4371ft allowing only 639ft of spacing. Some people will say that yes that is fine, but I say why not create a little separation. 5,500ft or 6,000ft would make your life while controlling a little easier :) In addition, that last go around should have been given a little sooner. Great job of noticing that @SwedishFlyer had not yet exited the runway, but next time notice the possible collision a little sooner. Lastly, no need to keep telling me make left traffic. You’ve already cleared me to stay in the left pattern, so no need to keep telling me. Sequence and clearance instructions were given in a timely manner, so good job with that. Keep practicing. Next time you open up for training, I’ll try to stop by!