Visually, there's not much I can think of to say about this. If you want, you could <a href="http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011MNRAS.411.1035Y" rel="nofollow">read about it</a>, though. And then you could say, "Ah, so that is what a super-metal-rich planetary nebula looks like."

Again, two sets of data were three years apart, so if you are a very keen observer you may notice slight color fringing.

Red: hst_08594_03_wfpc2_f656n_pc_sci + hst_06119_94_wfpc2_f814w_pc_sci

Green: hst_06119_94_wfpc2_f555w_pc_02_sci

Blue: hst_08594_03_wfpc2_f502n_pc_sci