In your first step wedge, not enough cyan silver is developed in the first developer, and so too much dye is formed in the color developer giving a cyanish colored toe. This is probably due to the bromide inhibiting the cyan layer developing to completion, which should take place evenly in all 3 layers to make a neutral. Some silver halide solvent in the developer might help along with lower bromide.

IDK. I got a number of very nice cross processed prints, but never got a good portrait. All of my best prints were landscapes. If you see those by others, you will see that the same is probably true. It may be an unsolvable problem.