I think that this photo needs a center of interest or a focal point. Ppl are drawn to that tall plant which isn't all that interesting. The foreground is a little too dark (probably due to the harsh shadows created by the bright sunlight) and the bg is too hazy. You might also be careful about centering the horizon in the frame. You could try shooting in the same spot if you place some of the plants (perhaps the group of 3 from the center) in the foreground so that they are taking up more of the frame and attracting attention. Then shoot at a different time of day. Early morning and late evening have the best lighting and would probably have a more interesting sky.
What is that long, skinny thing in the picture? I know you have probably already received the proverbial "too dark" comment but it is pretty dark - I always seem to submit photos that are too dark. That stick thing is pretty interesting, I wonder what it is?