Hmmm... yes, I wouldn't say lightning - it is too curved and "unjagged". Pretty, though without much depth. It reminds me slightly of wires curved and twisted into shape. Or, for some reason, ink on paper. Could also be an effect of the sort you might get if you waxed in the lines and then sprayed white/blue paint before removing the wax, but where the paint is carefully controlled so it never strays too far from the wax lines. Neat effect.
Nice radiating design you've got here. I'm not sure I agree with margali, but then I usually don't so don't mind me. I'm sure there is a lot of good advice there, but I happen to like images like this full of imagination and room for interpretation.
- cfr