GIMP.
Existing banner as template.
Wallpaper from the WLO site, with just a small edit to move the butterflies.

Oh, the non-obvious parts? :)

I spend quite a few hours over the course of a few days studying and redrawing the logo (and have continued since!), tracing out
a proper 6-pointed star,
a series of rings,
letters for the outer ring (changed the one "A" to "E", stuck the final "N" in),
zodiac symbols for the zodiac wheel that makes up the center (you can just barely see Taurus, Gemini, and Aquarius),
best font I could find, pasted over several times to fatten it up, masked with a gradient, with a white border of 3, 4, and 5 depending on size.

NOTE: the logo as it is NOW is a separate .xcf file, if anyone wants it

I tried different modes for the logo layer, Settled on "Burn," and left it relatively large. Was happy with the effect looking like the hearts/sparkles were in front of the logo.