The Flagship

The Burning Ship map z -> (|Re z| + i|Im z|)^2 + c iterated over the parameter plane, framed tight on the main ship at c = -1.7510 - 0.0330i with half-width 0.045. The imaginary axis is flipped, which stands the hull upright and puts the Im c = 0 antenna across the frame as a sea horizon. Luminance is the exterior distance estimate |z| log|z| / ||g||, built from the exact real 2 by 2 Jacobian of z with respect to c.