Generate an SVG as a thank-you greeting card illustration. Bold playful style. Background fill #FFE4F3. Draw 3 gift box shapes at lower-center in #FF6B9D and #FFD93D with ribbon bows on top. Scatter confetti dots in #FFD93D and 4-pointed star shapes in #FF6B9D across canvas. Fun and thankful. No text, no labels, no emoji. Output raw SVG code only starting with <svg.

The image shows a thank you card with three gift boxes on a pink background. The text on the card reads "Thank You" in bold, white lettering. The gift boxes are of various sizes and colors, and the background is a bright, cheerful pink.