I feel like there was some slight overuse of rolls when positioning, try not to react by rolling into your opponent. Stick to retreating dashes, shield, roll aways, and spot dodges. Additionally, I don't think I saw you tech a single fall. You almost got some successful tech chases on Flame Choke into Flame Choke, but you used it too early while he was still in I-frames from the roll. You too often attempted to contest Luigi's frame advantage with laggy moves like Flame Choke after being hit, instead of falling back and returning to neutral. Your approach game was too heavily reliant on grounded Usmash, Flame Choke, DA, and Wizard's Dropkick. Mixing it up with some empty short hops, Nairs, and aerial Flame Chokes would help you get in.
Hope this helped. You made good use of Usmash and some ledge-canceled Down-B's. You also landed good Flame Chokes in neutral, you just need to polish up your tech chase game to capitalize better since you ended up getting punished off of every single one.