Picked my dress!

Duende by Pronovias!  Yesterday when I went back to the shop with my family I put the dress on and I knew it was the one.  In the pics the sample is 3 sizes big so the bunching on the thigh area won't look like that.  Also we are going to add some lace over the feathers on top.  Not to hide them completely but to give it some texture with out it being all feathers.  (Looks really pretty!)  I'm thinking of doing an outer bustle and it will need to be hemmed as well.  But this is my dress, belt, and veil.

But now my question is the neckline. Since I am ordering the dress in my size the neckline may show a bit more cleavage. Should I keep it as is or make it into a more prominent sweetheart?  I guess I'd know better once the dress actually comes in, but tell me what you think.  Sorry if the pics are huge!