Birthday invitation card

I am looking for a freelancer to design a simple birthday invitation card with a rainbow theme.

Style and Theme:
- The birthday party theme is a rainbow theme.
- The style should be simple and fun.

Colors:
- I am open to suggestions for the colors of the invitation card.
- No specific colors in mind.

Quantity:
- I only need one invitation card for the birthday party.

Ideal Skills and Experience:
- Graphic design skills to create a visually appealing invitation card.
- Experience in designing birthday invitations or similar projects.
- Ability to incorporate a rainbow theme into the design.
- Creativity in choosing colors that match the theme.