residential building

I am a bit confused by the lighting, because some of the shadows are pointing different directions. If you are using more than one light in the scene, make sure only the one representing the sun casts shadows.

I think I've realized why I was confused by the direction of some shadows, the main light is very high and directly behind the camera. Lights placed directly behind or in front of a camera tend to flatten a scene, try lighting from one side.

I would work the brick texture a bit more because it seems to be too flat. You can add a bump map and a reflection map. And perhaps contrast a little bit more the diffuse map. And I think you can add light and colour adjustments in post. Here is 5 min tweaking. Hope it helps.

I am a bit confused by the lighting, because some of the shadows are pointing different directions. If you are using more than one light in the scene, make sure only the one representing the sun casts shadows. That said, I think the lighting is too even, meaning it is creating small shadows and flattening the image. Try a different lighting angle to produce some more interesting shadows. More contrast will help the image. Also, the lighting of the background image doesn't match the foreground lighting at all, making it look like a billboard. Just be aware of that. Justin