Hello. I am recovering from some major hardware (motherboard) and software (virii) problems. But it seems I've finally got everything under control... for now.
Now the style of artwork that would best work for this kind of thing is 'isometric'. All right angles and stuff like in the Wong building. I'm not too good at the style and frankly there are several pixel artists that are exclusively making isometric pixel art. The best one around is a person going by the nickname Zoggles. His website is at
www.zoggles.co.uk. Another is Gunstar Red with his army of trolls website at:
http://www.armyoftrolls.co.uk/ Both are amazingly better than me at iso pixel art and I suggest you hire either of them to create your template. If however neither are available or you're too cheap to pay for their services, I'm prepared to give it a go. No promises though.