yeah sure its dynamic, but so is a 18mm wide angle without the distortion.

great scenes. good lighting and nice materials. really not a big fan of the fisheye though! it ruined half the renders for me. Try looking at architectural photography. Photographers spend 1000s on wide angle lenses without barrel or pin-cushion distortion to shoot Interior and Exterior Arch scenes. You could also try a bit of Vertical shift, to create the Arch look. I would reserve the fisheye for live action sports etc other than that, solid work!

The best thing I learned while working with UNITY this summer was a simple workflow:
SketchUp -> Blender -> UNITY
u can leave out Blender for a static scenes, but the last time i checked, if u wanted movement or interaction, i.e: opening doors, u needed blender. Because all SketchUp Objects (groups) have the same origin (0,0,0) which made transforming or moving SketchUp geometry in UNITY a nightmare. I never found a function in UNITY that allowed to me reassign an objects origin to its center. Luckily all it takes in Blender is hitting to buttons once everything was selected. To figure out this workflow however, I spent 2 days Importing, Exporting and wildly swearing at my mac. If anyone has a better way pls let me know!
format used from SU to Blend: .3ds
format used from Blend to Unity: .blend