Some very nice work there! Good job.
In general, the colours look a little too orange. Maybe this was in an attempt to bring out the colours of the leaves, but it's left the skin tones looking a little odd. The exposure also looks on the low side. I would definitely bring them up a bit.
Here are some comments
1. The composition is awkward. They are cut off around the knee area, which is an odd place to crop. At the same time, there is a lot of dead space above their heads. This is neither a tight shot nor a wide shot... it's something inbetween and it makes it rather odd looking. The positioning of the couple is also very centered. If it was a tighter crop, that would be fine, but as I said, it is neither tight nor wide. It would be great if it was a little wider to show the whole dress, and have them placed to the right of the frame. Or... tighter in and less dead space all around them.
In terms of posing them, the bride is engaging the camera and NOT the groom, which is fine. But the groom is also trying to engage the camera, but half his face is covered. If you wish to partially cover his face, don't have him look at the camera. Have him do something like look down with his eyes closed, so it looks like he's enjoying the bride's presence or something.
2. The couple is placed in the centre (vertically). I'm sure you didn't put their feet closer to the bottom of the frame in order to show the leaves on the ground. But at the same time, there is a lot of dead space above their heads and under that tree branch. Also, the veil looks beautiful flowing like that, but you can't see all of it. If you want to use the leaves on the ground, the veil, and the branch above them, then this shot is screaming for wide angle (or even ultra wide), shot at a low angle, close to the couple, in landscape orientation. Getting low will get the leaves right into the lens and make them quite a feature, the perspective will also put that cool branch closer to their heads to be a great background for the shot. Landscape orientation with the couple placed on the right side of the frame will allow you to get the whole 'blowing veil' thing into the shot to make it super dramatic.
3. is positioned great, just like how I would have liked to see 1 positioned. But her dress is cut off on the left edge. If you are trying to get the veil to float by having someone hold it, get them to hold it and let go on the count of three, then take your shot as it falls. The veil looks kinda odd when held tight. If it's a breeze that's blowing the veil, then you can still use someone to hold it wide open and then let go to get more of an effect with it.
Also, his hand is right on her butt. I'm sure he's enjoying it very much but it looks kinda funny on a wedding photo.
4. is pretty much is the same as number 1's comments.
5. is also nice, but her dress is clipped on the right edge. Also, hand placement for her left hand could be higher, like on her waist. Another comment is that this shot is showcasing her dress. The problem is there is a lot of detail lost in the dress. I'm not opposed to blowing out dresses in certain shots, but when the dress what's being showcased, it is important to hold all it's detail.
Otherwise it is a very nice set of shots. hope that helps, and thanks for sharing! 