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.

PE