Firstly, choose an appropriate venue that can accommodate your desired number of guests and create the right atmosphere. A ballroom or a grand hall with high ceilings and ornate décor would be ideal. Consider adding atmospheric lighting and decorations such as chandeliers, candlelight, and draped fabrics to enhance the ambiance. To add an extra touch of elegance to the event, consider incorporating small details such as a red carpet entrance or a photo booth with props for guests to take pictures. Additionally, having a theme for the event such as a Venetian or a Mardi Gras theme can add an extra layer of excitement and intrigue. By paying attention to these small details, you can create a truly magical and unforgettable evening.