Actually, I see a problem here...first up, that Erica mixer in the top row seems like it does too much and is too big for a source submixer. Also, it has a compressor onboard...but you ALSO have a compressor module in the bottom row, and that can get dicey when trying to set up levels in a modular. And you're eventually heading for a stereo image by the time you're hitting your output stage.
Do this instead: pull the Erica. Replace it with Doepfer's Mini Stereo mixer, then add a second stereo mixer for the drums in the middle row. Once that's done, the FIRST mixer should feed VCAs #1 and 2 in the Veils, and the SECOND should feed #3 and 4. After that, then patch the individual VCAs from the Veils to the two stereo inputs on the MakeNoise crossfader, optionally using the FX Aid XL for the 1/2 feed and the little FX Aid for the 3/4. This way, you're in stereo once you get past the sources, with VCA level control all the way to your output via the Veils' VCAs.