Dear sir,
if you post your drawings to me now I can have it done by the end of this week. My quality is photorealistic, and you don't have to pay if you are not satisfied.
Also, I can make a photo-composit of your 3d model on a real environment photography, so you can see it directly where it will be built. You just need to take ordinary camera and take photos of your place.
Thank you for your time,
Best Regards,
Berislav Curic