Shan Shan –
Please see suggested revision of your concept sketch. I tried moving a few design elements to give your design better flow and unity. You must redraw that bridge so the perspective works. I gave it 2 sides but you should draw it from reference. Make sure you can see what is in the background behind it. You sketch is missing the details that would be seen through the spaces in the bridge.
See the note on text. Also you can simplify that text. Visit Japan. Cherry Blossom Festival March- April. Find a letterface that works with your art.
YES YOU MUST HAVE A TIGHT PENCIL DRAWING OF THIS. IT MUST BE UPLOADED TO DROPBOX for Printing.
YOU CAN DO IT!