The pose in one is nice, but you need to bring in the blacks and soften it up a bit and the shin tones are too white - they need to be warmer. Way to harsh for an engagement photo. #2 I don't care for - their dirty shoe bottoms? I just don't know who would want that. It looks kind of yuck. Instead of their dirty shoes, how about a close up of their hands interlocked? Any way, hope I was helpful. Keep shooting!