/cgl/ - Cosplay & EGL

I’m struggling to find a blouse that works well with this halter neck, especially because I worry standing collar/high neck makes my neck look weirdly short. But looking through peter pan collars, I feel like the style clashes. Am I just over thinking this??

Also worried about matching the off white of the dress background. It’s slightly more beige in person than I expected from photos. How far off is too far off to coord with true white? It’s still closer to that than my cream or ivory...