Hi Adam
Heres my take
#1 - The composition with the sun in the middle doesn't especially work, its too bright has caused a large 'blown' area into the picture causing the rest to underexpose badly. Whilst this sort of picture can make a nice silhouette type image, there is too much dark area for this to work imo.
#2 - probably as good as this sort of photograph will get, it doesn't make me want to hang it on my wall but in all honesty I don't think I could improve on it bar to move the focus point slightly
#3 - Lop 2 inches off the bottom and as SamP says its too dark, although you don't need a histogram to tell you that. try raising the fill light levels and clone out the plastic bin or next time you fire the shutter say to yourself 'content aware'
#4 - I like this the most, has a lot of potential but if you had waited 30 minutes the sunset may have filled the sky and reflected lake with colour - lost potential
#5 - Foreground is a bit cluttered with tops of trees, bushes and street lamps and no real focal point in the image.
#6 - Really nice, not sure how sharp the swans head is and being picky would like to see more 'eye'
#7 - Could just be a phone snap - sorry!
#8 - Selective colouring is a little last century but this is a good example. Maybe think of a different way to highlight lines and curves in the pic? Composition is great.
#9 - Not sharp, unsure if you have chosen the correct metal part to focus on, overall I don't like the composition and lightings too flat to have any wow factor.
#10 - Again this would work better in colour than selective colour. Also the main flower head which is in focus isn't well placed compositionally - see rule of thirds.