I did a quick graphic design today. Here it is, along with the initial sketches.
planning doodle done with a ball-point pen on a scrap of paper:

Quick mock-up done to get feedback:

Inked images which I used as basis for my final design:

Full final design, after I re-sized and aligned all the elements, added color and special touches in Adobe photoshop:

Postcard image advertising the location:

Grayscale version:

a b&w version for miscellaneous purposes: