Lovely result. Self-deprecation may be normal, but I suggest you stop it in your videos. It is not necessarily a helpful self-talk, either. Be kind to yourself. And very well done video, BTW. It's fun, right?
I really like you it turned out. More AC may darken the soap, but will also lead to greyer lather as you use the soap, so decide which you really want. Black mica &/or a discoloring Fragrance (with vanillin) may be a good choice if you want a darker color.
What was wrong with your Stick Blender; I notice you mention it wasn't working correctly.
Suggestions regarding mixing mica & other powdery additives: Use a face mask/respirator to protect your lungs, particularly when handling the powder, particularly if it's going to disperse into the air like the pink did when you started stick blending. Pre-dispersing your powdery substances (micas, etc.) in oil or water (depending on what is recommended by the vendor/manufacturer) will help prevent a cloud of nano particles dispersing in the air you breath.
You may have over-blended the pink portion of the soap, although I only watched the video once, so I may have misread what I was seeing. It looked a little gloppy while you were pouring, so I thought it might be from that, but again, I didn't peer closely at the screen, so I may have misread what I was seeing.
Not knowing your goal, I am not sure why you were disappointed, though. I think the soap looks quite lovely.