object placement and rhythm on more intense parts seems little weird to me. part starting at 00:59:251 (4) - has some rather long and intense 1/2 jump parts broken by 1/1 sliders and 1/1 rhythm gaps. It kinda kills the feel of intensity on this part. I'd suggest at least filling the rhythm gaps with 1/2 notes. For messiness on that part i think it's because the lack of clear patterning. You should try to make more recognizable patterns so the part seems more thought out.