Hi Beanie -
The orange "base" color comes from the orange 10x essential oil and some orange peel powder (about 1tsp ppo). I think the other EOs also may have contributed to that color too but mostly those 2 elements would've created the nice orange color I'm thinking. (I really like working with orange peel powder actually. Easy to blend and adds a subtle fleck to the soap. Plus it doesn't seem like it would be scratchy at all. I bought mine as bulk grated orange peel at a health food store and then ran it through my coffee grinder to make it into a powder.
The brown swirl is from cocoa powder. Also easy to add/blend/at trace. I think I did about 3/4tsp in a cup of raw soap.
The white swirl (which you can barely see!) is from titanium dioxide (from Brambleberry). I added at trace but it was super hard to blend and if I (ever) use it again I'll add to my lye solution or my oils (have to check what BB recommends for this particular form of TD as some are better in water and some in oils). I didn't use very much, maybe 1/8 tsp in a cup of raw soap.
Hope that helps and thanks for the compliment!
PS: I try to stick with all natural colorants as well so the TD was a bit of a departure

Not sure it would really be considered "natural" in the truest sense of the word...
Karri