Fitting?

A few years ago, I made New Look 6557 to wear on a cruise. I had some fitting issues then and I've been wanting to re-work it (please look at my links). I cut a larger size based on the differences between the sizes and that I needed one size bigger than the largest size. It's still not fitting like the picture on the package. Instead of the cross over pieces laying flat on my chest wall, they pull out (I've stitched it together) so it's like a V-neck. I'm going to re-shape the pieces so there's a bit more coverage, but I still don't know what to do where it overlaps. Should they be closer together? Further apart? Further apart and then the overlap needs to get tucked under a girl. I thought of cutting it a bit larger and gathering it to fit between the same notches on the body. I don't need to extend the side seams, I need more? in the middle.

Any help would be greatly appreciated!!!!

Edit to add: I solved the fit issues of this top and the original dress by giving them to my mom. They fit her beautifully. Now I HAVE to sew again for myself! LOL.