Specific image created

Design details: I know what I want, but quite difficult to explain!

Basically I want to show a skyline, but then show how different people live within the city (a diverse range).

I've mocked something up. This is VERY basic, it would need finenessing and the right finish put to the lines (I'm thinking more laser type lines than solid).

I would be able to get you the skyline image or you could choose it and I would buy it (deposit photos). Plus I would get you the people images.

I would be able to show you the website it would be going on so that you can see it yourself. I would also give you the colours. It may be that we need more than 4 people and have 8?

I need this turned around quite quickly.

This may help but I do like this kind of thing: https://www.google.co.uk/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http%3A%2F%2Fwww.s-ge.com%2Fglobal%2Fabout%2Fen%2Fcontent%2Fdhl-%25E2%2580%2593-competent-partner-logistics-requirements&ei=cZb0VNzpGczqOJaugcgN&bvm=bv.87269000,d.ZWU&psig=AFQjCNF40NGIpkhtHkNi61Oo0Oxi8uhVSg&ust=1425401830520323
Ideas for the visual style: as above
Extra notes: You might have better idea - would love to hear it!