..use in my software package for creating Building Management Systems.

That sounds like an interesting project if you feel like describing it.

.. guess I'll need to play around with the settings?

Yes, it is usually a good idea to test different settings in Q3 relatively low resolution to get a quick impression. My ambition level is low, but many posts especially by Ceciliabr and enkonyito explain how to get accurate renderings. Btw. in Q3 and Q4 there is a difference between Virtual visit which includes sky texture and Aerial view which does not.

I would have posted an image in the reply, but I didn't know how to.

A sticky thread in Gallery explains how to post images. You can use any service, not only mediafire.com, as long as the server settings permit the images to be viewed/embedded without passwords. ok