cool map, does a lot of interesting stuff with phase. the difficulty curve and levels themselves seem to be in a pretty good place but it's definitely t6 as it is. lots of the later levels get very confusing to try doing blind but there's probably not much to be done about that, they're all fun once you figure out what to do. having jump numbers would be nice too so it's easier to talk about individual jumps.
jump 8(ish) you double -> double with a low ceiling, which feels very out of place and more like a bonus than a pogo jump.