How about some additional modulation source like a Wogglebug or a Batumi to spice things up a little bit ;)
Also a quantizer (e.g. a 2hp Tune or something fancier like a μScale) would go nicely with your Pittsburgh sequencer and your Maths and any additional modulation sources. A CV mixer like the Happy Nerding 3x MIA would also be a good augmentation if you go for the more modulation sources route. Additionally the 3xMIA would also work nicely as an input attenuator for your Clouds!