Not a bad first go (in future resizing images to <250kb makes life easier for everyone). A few things strike me. 4 images, four different white balances? You should always have consistency across a set, and a simple white/grey card would help you get that sorted in post. You were working in very strongly back-lit conditions, and I like what it's done with the dress, but you really needed fill light on her face. In a couple of the images, it looks like you've fairly aggressive in your shadow recovery, and in all the eyes lack catchlights and are rather dull and lifeless. Lastly, watch for the little things; fly-away hairs, blown highlights (the fill light would have helped with that), and overly-centered compositions.