These are just a few of the ones I like off of my flickr. Any criticism is welcome. I was an art student and went through some pretty brutal critiques so...
Okay, you asked for constructive critisism
Nice composition with the tram heading to the giant golf ball. I'd tighten the cropping a bit. I felt the branches around the edge to be distracting. You have a nice sky but the grass is a bit boring. Good golor though. I think I'd prefer this picture in a 2x3 format, with a bit cropped off the top (branch) and bottom (grass), say 5-6% off each.
I overall like the image but while I like the composition of the tree on the right, I feel the palm branches at the bottom left distract. Think I'd look at trying to clone them out if the picture wouldn't be printed large. Those branches appear closer than the tree, next time the shot presents itself, perhaps raise the camera bit more if you can to get over them while still getting the rest.
I think that this would look nice in HDR. As it is, you have areas that are overexposed and areas that are underexposed. I like the flowing effect.
Seems kind of flat, not really drawing me in. Not sure if it's the flat horizon of the sign or not, perhaps the sign at a slant would help.
Kind of busy, not sure what I should be focusing on. Most of the image seems rather soft/out-of-focus as well.
If I see this correctly, the trees were intended to frame but are getting in the way.
Cropping pieces of people can be a valid compositional technique but it looks like it just sort of happened here. Wider-angle would help.
exif info would certainly be of use.