I’m not sure that I know what champaca smells like, so I can’t say whether this smells like a champaca soliflore or not. To me it smells like an earthy floral, warm, spicy. It smells mostly like earth to me, a bit dusty, but not muddy, and also still floral. I do also notice a light touch of star anise. While this isn’t a smell-alike to anything I know, two other scents this remind me of in character are L’Artisan Fleur de Narcisse (this is more floral, slightly sweeter, spicier, less leathery) and Ayala’s own Rebellius (this feels like a more feminine counterpart to Rebellius, though both are squarely unisex). This strikes me as an introspective scent, quietly beautiful.