He just wants to do it in that style - I wish I could read German now because I'm itching to know what the words say. The style is possible but you need to draw it all out by hand (which will take some time) so you better get started. Instead of using the little buildings to represent the whole town make each building represent one building - you are going to need a lot more of varying shape. I understand your desire to represent other buildings, my little black squares are just to represent placement, not the final drawing. Draw about 10 different houses and then draw the important buildings that you want and then place them down and make copies of them and place them down - and so on.