Preview - UFO soundscape (Patreon)

So I shoved my phone to my speaker and recorded a preview of the 3 stages of my new soundscape.

Is the alternating tone in stage 3 annoying?

Any feedback or suggestions?
I have bass space rumble sounds + a delta binaural beat which can help with deep sleep.
I have:
various beep boops
alien speak
the tiny patter of alien footsteps walking from one side to the other.
At stage 2 they turn on alien radio and listen to a hit song (aka, kalimba and music box in reverse)
At stage 3 there is that "annoying" sound and im open to suggestions to replace that


atm the alien speak is typical sci fi stuff, but...I was toying with the idea that they are a calm utopian race and i could just edit my voice to sound sing-songy and whispery like a breeze or something...and replace the alien voices with that.

The buttons...I'm not so keen on but without it it kinda didn't even sound like an alien space ship?


:)