wear a piece of adelaide

i have applied to be in a small group show called 'wear a piece of adelaide' it is a jeweller show where the artist makes work with adelaide in mind.

i have decided to make some neck pieces, kind of like my badges, only they will have silver back plates made that have loops on them so they can hang off of a black chord.

i have taken sections of maps and simplified them and will make a stencil to sandblast the map onto the tile. these are some possible layouts.

i am thinking of making some with the same image but the colour inverted.

 or i can make them all the same with black lines

or white lines and black back ground. what do you think?