I thought I already commented on this,...
Well here goes again: Very nice DOF, great subject. I which it were a vertical composition, I did a re-crop and it has more impact and focus of interest on the main subject.

I agree with Beamer. I would probably aim for an 8x10 size and crop off the bottom edge some too to loose the twig on the lower left and the leaf in the bottom center.

This picture would also be neat as a high contrast BW.

Excellent subject, and nothing to say about the beautiful DOF. My only regret is the way you compose the pic, I would have preferred the subject positionned in the left or right part.

I think the composition could be improved by not having the subject so centralized here. There are some dark twigs on the right of the frame that are a little distracting because they don't blend well into the wonderful background which makes them compete a little with the main subject as opposed to complimenting it.

Hmm, I don't remember this photo. I like it. I disagree with the others on the composition, I think it's nice to a see a centered subject once and a while, everything uses the rule of thirds these days. However, due to the lack of colors (looks mostly brown but I'm colorblind) I think it would be better suited in Grayscale with some pretty heavy contrast, might make it look a bit more captivating.

I noticed the cool shape while walking along a path in some woods. I did the best I could to get rid of extra twigs but obviously I could have done better. I wanted to capture the natural curves/bends.

The dark twig to the right did bother me a bit, but I couldn't think of a solution (I don't think cropping would have helped much as it would still be in the frame). I didn't notice the smaller twig to the left and I wish I would've clone stamped it out now v.v

I'm not much of a cropper to be honest, it takes a lot for me to step outside 6:9 ratio.

I did consider going b&w on this one but I decided not to because I thought you would loose the twig with the blurry backdrop, but maybe with the right tweaking with contrast it might turn out better than the colored version.

Thanks for all the nice comments :)