Here is my completed base map illustration.

Map

I have placed the markers on the map to indicate where I need to put the shop front illustrations. I decided to go with the first test from colour scheme 2 as the orange adds a vibrancy to the somewhat darker theme whilst still fitting comfortably with the other colours.

The buildings have been outlined rather than filled in like in the colour tests because I felt that the shapes of block colour would make the map too confusing look at.