a 'Save the Date' wedding invitation with an autumn theme. Feature a tree with vibrant fall leaves forming a heart shape at the top center. Use a clean white background with an orange border decorated with autumn leaves, berries, and floral elements in the corners. Include playful and elegant typography: bold red script for the couple's names and important dates, paired with simple black serif fonts for the rest of the text. Add subtle leaf illustrations scattered throughout for a seasonal touch.