Colorful zig zag dress

White, turquoise, yellow and coral dress with zip back and pockets. Has some light beige discolorations to armholes area and interior neck as pictured. Also noticed one darker dot Shown in picture 3 on front of dress. I am not sure if this is a mark or a part of the fabric. I have not tried to remove. This is perfect for Easter, a spring event such a shower or wedding!