Kenny, I think the exposures look good. If you are like me, when you are trying something new, you tend to lose attention on other things though
The overall composition doesn't work for me either. If the gazebo is an important part of the photo, I would try choosing a lower perspective so that you can get the woman and the gazebo more side by side than stacked on top of each other.
Colin, asymmetric vignettes - do tell how to make them! I guess I google it or search it on youtube, but that's not as much fun.