Vintage A4 Birthday Poster Design

I'm looking for a talented designer to create a vintage-style birthday poster. The poster should be A4 size and primarily in light blue.

Requirements:
- Vintage art style
- A4 size
- Light blue color scheme

Ideal Skills & Experience:
- Proficiency in graphic design software (e.g., Adobe Illustrator, Photoshop)
- Strong portfolio showcasing vintage designs
- Attention to detail and creativity