I have tons and tons of suggestions for u...
let me give a few of my personal tricks..
In thor:
route LFO1 to the position/detune amt of ur waves, pretty subtle will work magic. Do it on all the oscillators and do them in different amounts and direction: (i.e. +37 -40 +23)
route your waves through a formant filer with the big knob to 0. Then route: LFO2 > -67 Filter X > +56 Filter Y. Next copy the thor, place it as mentioned above, one left one right.
Now do all the things i just said, but in the opposite direction with different amounts. so lfo1 > osc 1 det atm > -39 etc etc...
If you're already automating the frequency for subtle movement, why not try to do the same with the resonance?
Uhh.. oh yea, u can do a subtle mod envelope on the pitch of every oscillator, and again make it different for each one so you get this wobbly liquid sound.
If you need more, i got tons of ideas going on ;p