You've got some nice photos in there.
I would say that in some images, a little attention to detail and backgrounds will turn good photos into great photos. For example...
The guitarist has a blurry woman with half a head in the window reflection. Waiting 10 more seconds would have removed her
The child at the bench would be better without a pram behind him
The eye would be so much nicer without the
mucky mascara
The guy who looks native american would look brilliant in black & white with high contrast, he has some real
life in his face.
The water droplets frozen in time are fantastic
The one entitled "Capitol" would look great with the curve tightened up to accentuate lights and darks.
Good luck with your project