The first one is pretty cool. I'm out of my genre (landscape) so I'm no judge.
Good exposure and focus, depth of field and so on. So no they aren't that bad, but you do need to work on your craft.
The first few reflection shots show you're thinking along a theme/series. I like them a bit, but feel they would be more effective with the top parts, above the reflection, cropped off. I'm not sure with the cigarette pack in the last two.
It takes time, lots of work and study. Keep at it. Good luck. Maybe the beginners gallery would get you more critique?