I also notice that the signal flow in this is sort of all over the place, and not in an arrangement that's more intuitive. Lemme tinker with this a bit...
OK...see how this feels:
What I did here was to restructure the layout. Nothing added or removed. Your "voicing" is up top, modulation and Rings on #2, drum and random on #3 on the left, FX on the right, and all of the control on the bottom. Also, the two 4 hp Doepfer mixers that are in row #3 are unused in this.
In case it's not apparent, the top row has your buffered mult (yes, you do have enough CV destinations!) then the STOs and Plaits. This is followed by your Quad VCA to give you level control over the oscillator signals. Then the Telharmonium has its own Veils to control the three outputs it has. If there was a quadrature source in here, you could hook it up so that the Veils could "strum" through its outputs. Fold is next (and since it has two inputs, try sending the VCA outputs to the Fold inputs!), Wasp VCF is next, and the Polaris after that, with one of the small Doepfer mixers functioning as a summing mixer for the various VCF outputs. From there, you could go on to an effects device in row #3, or you could use Rings as a final "filter-ish" device before FX. Lots of potential...it just needed to be a bit more visible.