Hmmm?...at first I thought you had done the ol' looks like detail but is really just processing artifacts trick again

..but nup, comparing to Hubble shots I think the mottling in the halo is indeed (at least mostly) real

, nice job.
Now I would like to see a crop of just the inner ring too please...and maybe the pointed ends of the inner oval, or.....oh sorry your field is already sooooo small you can't do that huh? DOH
Mike