You'll be smart to listen to Tirediron's advice. He (you are a he, right?) pretty much nailed it. The only thing I would add is the picture of the monkeys around the tree trunk is slightly out of focus.
I really liked #1, 2, & 5.
#1 would definitely gain from being in portrait orientation. I would have liked to have seen the top of the tree.
#2 is quite nice. I wish the pole to the right of the path and wires above weren't there. Perhaps a different section of the same path would have been clear of distractions? I love the foggy, early morning look. It gives it a strong spiritual feel.
#3: Watch your composition. The centered trees make the image look bland and boring to the eye. If you crop off the dead space to the left of the trees, you get a slightly more interesting image. It would have been better if there had been an interesting subject to the right of the trees because your eye is naturally drawn to the right of the image thanks to the diagonal line the trees create. Here's a quick edit I did. I just removed the dead space and cloned out the cable:
#4 is too over exposed. Perhaps a good candidate for HDR?
#5 I disagree with Tirediron on this one. I like it. I don't know why, but I do. It doesn't bother me at all that the droplets are blown. It just has a neat texture to it.
#6 Again, just a little too much dead space. I would crop the image to get rid of everthing just past the monkey on the right and what's below the monkeys. Also, they are slightly out of focus.
#7 makes an interesting abstract image. I could see this blown up and hanging on a coffee shop wall. lol. Kudos.
All in all, you're doing very well. You have a good eye, you just need to keep practicing. Watch out for distractions like power lines. Try to avoid them if you can, especially when your subject is nature.
Oh, and 7 pictures is a bit much. Try to limit yourself to 5 or less. Many people won't critique each image if there's a whole bunch of them. That's why you keep getting "looks good!" but little explanation or advice.
Last paragraph. I swear. As far as photo editing software goes, I use Photoshop CS3 (not free). I've heard good things about GIMP (free), but have never used it myself. You can also try Paint.NET (free), but I believe it's more limited, feature wise, than GIMP or Photshop.