I like how this design takes focus off of the letters "ED" in our name. It is critical that a viewer sees the name as a whole - we are "EDC" not ED C or E DC. Good design
Could the swoosh on design number 5 have a stylized arrow tip on the right side. Maybe stylized feather shape on the left. We worry that the line is too thin to embroider well. By making it an arrow we can fatten the ends.