Defining the image that you will get from the scene you point your camera to!
	
		
	
	
		
		
			Consciously I think I was unable to disentangle what I wanted to see from what is actually in the image.
You're right.  These don't "have it."
That brings up an interesting question, though:  How does one learn to see an image without forcing the circumstances of the capture on the perception?
		
		
	 
Rachel,
We all want to make impressive images that have our defined stamp of identity and that seem to  demand to be seen.
You have, luckily for you, stumbled on a barrier a lot of folk have to getting from their imagination, through their chosen hunting position and viewpoint and the lens plain of focus to sample some of the light from a scene to match what's in the brain. 
First you have to know what's in your brain. We feel the wind, smell the sea and notice the seabirds circling as you spot a family picnicking. The mother is nursing and the father is playing "horse" for his little boy. How do you get this atmosphere into the picture. Just pressing the shutter wont do that. You need to work on many solutions, comparing one with another. What of the scene do you wish to embed into the physical form of your art? What vantage point would get the ambience that makes this scene special. Let me reassure you, Rachel, Ansel Adams dod not simply set up his camera in the wilderness and shoot. He spent a lot of time working out that shot. So why not bring a sketch pad and force yourself to set out your goals and then you have something to build on. So getting this vision defined is where you, perhaps need the most practice.
The other point is that pressing the shutter button merely records some of the light from the scene, that's it! Photography gurus can seduce one to think that framing the image already makes the photograph. All one has is a 
latent image. From there on the real creative work starts. It's likely that a lot of vertical markets will have shot-[taking schemes which allow a high percentage of deliverable images with little further work. So wedding and product photographers, for example, use a pattern of photography which works for them 99% of the time. Some special shots do get worked on but most are processed with little local editing.
However, the 
best work requires multiple efforts to increase or decrease some parameter of importance to parts of the composition. The camera records everything with the same emphasis except for position, perspective, depth of focus and lighting which you control beforehand. So local adjustments can help define your idea of what is significant. 
You did not define what you were trying to do. Some can do this instinctively with certain subjects they have gained experience in photographing. Wedding and news photographers have to do it or else they would starve! For most others, we need to work beforehand and afterwards to make sure that shot represents what we imagine. The beginning of this is defining what you want. Eventually this might even happen in a Bresson-split second and you will get a rush, such a creative rush when you photograph, as you know you have nailed it!
I hope this helps,
Asher