First Impression: It's an average photo... it doesn't have much to offer, IMO. Sorry. 4 or 5.
Composition: Your comp on this photo is what keeps it standing however the other departments get tanked. 5 or 6.
Subject: When you said lonely tree, I'd've expected more tree and less not tree. 4 or 5.
Technical: DOF's a bit too shallow, and shot's a bit underexposed. 5.
Summary: Okay, this ain't one of your best photos. T least the ones that followed it did good, right?
Disclaimer:The following crits are personal opinions, not photographic dogmas. Please see them as suggestions, not claims of mastery nor a show of hauteur.;p
I like your use of the non-traditional window for this challenge. I think it may have been better if you had more interest in the framed area. Maybe found a way to zoom in more on the lonely tree, or captured it at a slightly different angle.
I think you picked a perfect window for framing, but there is really no subject other than the window itself. Nice focus and good exposure, but I think that there needs to be something other than the distant tree in the frame.
Very nice use of color and tones. Really like the concept and the crop on this one. At first, I found myself looking for a bluer sky other than just the whiteness, howevr, after looking at it a few times, I think that it is part of what makes the it al;l come together.
This has lots of potential. It seems like you should have waited to much later (or earlier) in the day to shoot this in order to get a more dynamic sky or at least one that is not so easily blown out.