One more note, since you're new here... If you want critiques, you have to ask for them. We have photographers of all skill levels here. Some desire critiques, other simply want to share there work and aren't looking for critical review. Either approach is fine, but the rule is that critiques are only offered upon request (or, if you're a long term member and other members know you *always* allow critique, that's OK too.)
Should you desire critique, simply post something like "Tell me what you think of these" or "What's your opinion of this shot?" or anything along those lines.
Positive comments are always welcome of course, but critiques, even constructive and well intentioned ones, can be difficult for new photographers, so we like to make sure they request them.