Are my decks actually bracket 3?

So I was looking through some comments recently regarding bracket discussion and it got me wondering if I'm under representing my decks when I'm calling them bracket 3. I tend to run very few if any gamechangers and I don't tend to run any tutors that aren't just ramp if you would even call them tutors. That being said my decks tend to go off pretty hard if I'm not being heavily targeted with removal. So I'm starting to question if I'm not interpreting the bracket system correctly. Usually my decks will tend to pop off around turn 7 or 8, sometimes earlier if I get really lucky with my draws. Like the other night I was in a pod with people running probably bracket four maybe even borderline CEDH level with the one guy running OG dual lands and other crazy shit like gaeas cradle and still took two out of the 4 games I played with them with my [[Roxanne, starfall savant]] and [[Cazur]] and [[Ukkima]] decks. Thought I would ask for some insight and see if I'm severely under representing things when I pull up to a pod at the LGS.

Some of my recent decks for example:

https://moxfield.com/decks/3BjpzoH2SUOR0DDu2gn-3A

https://moxfield.com/decks/Kk77ZLsoPEG_pi5tvd-3kA.

https://moxfield.com/decks/rZcJCyPJYkmTEIQfkSrpQA

https://moxfield.com/decks/HWMSyhXhXEGaeAC-zA2bkw