With respect to image 1, it appears that you shot in dappled shade, but pointing into the sun, causing a lens flare that streaks from the top of the frame down to the bride's right shoulder. Use a lens hood or a hat or your hand to shade the lens if you need to shoot into the sun. Either that, or it is a happy ray of sunshine ... still distracting however.
It also appears that you shot looking down on the seated bride and groom. Packing the wedding party closer together and shooting from a more neutral position (like squatting down or adjusting your tripod to be at the face or shoulder level of the bride and groom would provide a more pleasing shot, and a tighter packed group would permit you to back up and use a longer focal length to minimize the wide angle distortion going on, especially in the woman at frame right. This would also get the entire group in the shot without cutting off some of their feet. Also, using a fill flash, pointed at a 45° angle vertically, will give just enough juice to the shadows to help with exposure, and maybe with a bounce card, some catchlights in the eyes. You may also want to consider a little more shallow DOF to blur some of the foliage and the yellow wall in the background.
You are a brave person for taking on wedding photography. Keep it up!
Kirk