I like it! If I am not mistaken, I don`t think that is unblended fragrance, if it was it would seep out of the soap and make it collapse. This looks like glyserin rivers to me, and that can sometimes happen with overheating, some fragrances/colorants/liquids added etc. You perhaps used Titanium Dioxide in the lighter crackled part, right? Sometimes that can happen with the TD if not doing a waterdiscount (but actually, it can happen even with a waterdiscount)
Nothing to worry about, it is just a different (and cool) look to the soap! Just use the soap as normal.