Build a celebratory Instagram graphic around the Headline and Celebration Message. Use the Background and Color Palette to create a bold, uncluttered composition with generous negative space. Set the Headline in large white lettering using a confident, flowing script font with strong readability. Place it prominently in the upper or central area, then position the Celebration Message beneath it in smaller, clean white type. Add restrained decorative details such as subtle celebratory sparkles, fine curved flourishes or a thin border, keeping them secondary to the typography. Balance the layout for immediate mobile readability, with careful spacing and crisp letterforms. Do not alter, misspell or add to the written text. Render the final design in the Format.
Use these details:
Headline: "One Year Strong"
Celebration Message: "Thank you for being part of the journey"
Color Palette: "deep violet and white"
Background: "solid deep violet"
Format: "4:5 Instagram post"
