Banner and poster for the event

I'm looking for someone to create a banner and poster for an upcoming event. While the specific theme or concept of the event has not been specified, I am open to suggestions. The desired color scheme should also be open to suggestions, though I am considering tones that are neutral or muted in nature. Finally, the desired size for the banner and poster is large - more than 5ft x 5ft - so I am expecting a professionally designed artwork that will make a statement. If you feel like this is something that you have the skills to complete to a high standard, please don't hesitate to contact me. Thank you!