For the alien sound, I first used the water flow instrument I created beforehand to generate some melody, and then I opened RetroSyn mixer to modify it into alien sound. I changed most of the parameters in the mixer, like filter env, amp env, LFO. I played around with all the lines graphs in the mixer until I got this sound that I like the best and sound most alien to me. The following picture is a screenshot of the mix I used for my alien sound.