Well for some reason I can see the images today 🙂 and here are some more thoughts:
The images don't really convey the facets of the disaster. While some are varied visually, they are of the same facet: damage to materiel. In this sense they do not feel varied. This also contributes to the sense that we, as the viewer, are seeing a very static situation. In one sense we are, but there is somehow little allusion to the cataclysmic event that created the scenes you have photographed. This is exacerbated by the absence of people. I know there were no people there, but might there have been greater human traces to be found and shown amongst the debris and details, that give a sense of what the disaster means, both in all its magnitude and also in its personal precision - the human connection that makes all this make sense?
Do not be too hard on yourself. From what I see, you will be fully capable of doing the things you say you cant if you just keep on going. You are asking the questions and your drive to expand your abilities and your photography is obviously there! What you have tried to do is extremely difficult, because people are not present to make things easier for the view to connect. In the absence of people it can really help to get abstract, or partially so. Perhaps look at the work of Koudelka (Chaos) for some inspiration and ideas as to how he weaves small human traces together into larger frames and relates them to the natural and man made world.
If you want some practical comments, perhaps try getting in closer. Almost all of your images possess a sense of 'stand off' to me. As if you feel you need to photograph whole or nearly whole things from far enough away for everything to be immediately recognisable. Perhaps try to be a bit more flexible, dynamic and experimental. Get right in there until you cant see things any more, get in until you cant recognise them and just try new things, even if they seem daft. Don't forget elevation and low view points to change relationships. This sort of work is often hard on the knees, muddy and sometimes requires the balance of a ballerina! 9 out of 10 don't work at all, but when you get that absolute gem that give you that rush as you see the frame take shape, you know why you bothered.
Keep on going!