Nice stuff :) as for the advice, you can apply a pulsar delay to the white noise in the first part, with all the sync knobs set to 0/1, and slightly increase the millis time on one side while the noise rises to give a feeling of widening horizon. Or simply automate a StereoEnhancer. Also, there may be something to do with the transitions between the 3 parts. For now, it sounds like 3 different tracks, some blending may sound nice, idk
for me, the last part remains in the vein of an undefined urban genre, a very generic term, I know, but I can imagine a track with some hard and raw rap