I like this one and I'm not entirely sure why. That is a very good thing IMO. The photographs I like most are the ones that work for reasons I can't phathom.
Compositionally it's very simple and very graphic. There are three obvious layers of depth that draw you in - the foilage, the wall and the window. The lighting hepls take you through the photograph. I like it but, it should work better.
I'm sure I have a better example of mine somewhere online to compare but, I'm going to use this shot to demonstrate layers and depth:
Even though I like your simple composition I think my example uses very graphic lines to direct the eye into the distance more dynamically. Hate that word. However, there's sod all in the distance other than a void of ocean nothingness. This brings the eye back to the forground after a little thought to look more carefully at what's going on. The foilage in my case is much more subtle - slimey moss but, it's an equal example of nature winning over like your ivy.
Where you shot takes the eye directly into the distance mine sends the eye back into the foreground. In your shot the viewer hits a dead end very quickly also but, there is perhaps a a little to much going on to give the wall and ivy the prominence it needs.
Not absolutely sure about any of this. Like I say, I like pictures that work because I'm not why they do.