Not bad.. as a personal note I would go something like this:
View attachment 470668
You can still post work your render after it's finished in PS, lightroom, ACDSee or any other photo editing software.. don't consume your time in daz trying to make the best light, best colors.. it's too much time consuming and at the end you may not get the result you want either.
Anyway.. about this particular render try to light up more the figures, their expressions or at least I think that's the theme.. one happy couple.. at least that was my reason why I lighted up a bit more your scene.
You could apply some depth of field on the camera in this case.. and focus more on the figures blur anything else.. you don't need to blur it out completly..
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Can not remember your 1st render but if this one it's your second one looks quite good!
//edit:
and you can use one of these denoisers to remove the noise from your renders
https://f95zone.to/search/35969216/...odes]=1&c[nodes][0]=95&c[title_only]=1&o=date