Line and Highlight: 2 below logos are based on lines. Only Lines are added some effects in Adobe Illustrator.

Active lines: I tried to create logo like a lip stick, which is drawed on a white background. Otherwise, pink lines symbolize sweet love of a couple, white color brings feeling of a formal wedding.

Highlight: It does not like above design, everything seems stop. Curved lines of wedding are lack of movement, that's might hard to read. Because of that reason, I have added a line under it. Now, audience eyes can glance from left to right of the word and still easily to read. I think it is a good highlight