OK, so you sort of followed my advice, but I'd mentioned that this will actually increase the 6-7k peak and you need to compensate with clever crossover.
You seem to have removed the 10ohm from 3300 but didn't from 2389, that's why your 2389 response went down in SPL compared to 3300. My recommendation is/was to get rid of both resistors cause they don't do much other than introduce unnecessary components into the circuit. If any thing you'd be better off keeping the resistor on 3300 and removing it from 2389 if you are set on having resistor in series to any of the speakers
But well you know... it's my opinion and how I would go about tuning something like this, you might want/like something else. As long as you have fun with it and enjoy the process (and sound) I think that's more important than having the best in the world IEM at your first build.