I hear a few differences, and it sounds fine to me. Sometimes, it's best if you don't really notice the difference because that means it's more natural-sounding (as opposed to it being really noticeable because the pitchbends are causing octave jumps or something like that).
As for making the tuning more "obvious," I feel like that depends on your tuning style. Having pitchbends on more notes, using modulation, or using deeper/more extreme pitchbends might help, but that doesn't always work. It's song-specific and style-specific. Even the voice itself can affect it. Some UTAUs just don't seem to respond to tuning as much as others.
I know that's probably not the answer you're looking for, sorry. I like the tuning the way it is here, though.
(I'll edit this or post again if I can think of anything else.)