It seems like you have plenty of LFOs and a good delay in the rack (the Soma) so I'm wondering what's not working about those? Do you find you still don't have enough LFOs? And is the Soma disappointing you or do you just want more?

Editing to add that I see now this is a planned rack not a real one, so I'll second all the responses below. Cascading VCAs, another filter, and some good analog oscillators feel like nice additions, and going slow is always good advice.