With out knowing what's going on there I just went on a whim that this is about a couple 'connecting' at a concert. So here was my take.
The stage people were over powering the couple so I pushed them into the background.
I made the main couple bigger and adjusted her hand positions. I mean if you are going to touch someone make an impression and not hold your drink.
Her eyes weren't looking at him. On purpose? is she blind? Being aloof? So I adjusted that.
Also adjusted her skirt to make it flow or fluff better?
Lastly I took out the crowd. Yes they were cool and interesting to look at but they were distracting for me.
I didn't adjust it but if the guy is surprised I would change his hand gesture to a more shocked splay of fingers.
Anyway - just my 2 cents! Great hair on the characters I can tell you took a lot of time on it. I'd just watch out for stiff poses. I too struggle with this cause I use a mix of 3D models and reference.
Hope this helps!