I'm with CroMath on doing another one after a few thousand or so miles.
It may just be just the lighting but that last one still doesn't look real new.
The idea behind letting the new ATF stay in the tranny longer , after it starts looking a little better, is to let the new cleaning additives do their job and 'slowly' clean out any varnish etc in the tranny, or so I've read in these forums.
Keeping that ATF looking new is one of the main keys of extending the life of your tranny, at least on the 2nd gen Odys.
Curious, was there any burnt type of smell with the first sample?
Either way, keep that ATF looking like new. Good job on changing your ATF and those spark plugs look clean and the color also looks good.
The gap sure looks large in the pics but it is probably all just the large size of the photo. Looks like the engine is burning cleanly.