Low sun evening images

attached are 3 vray images with low sun/evening light.I personally think that evening or early morning sun helps create stronger images(like previous images i uploaded,these images have been post processed in photoshop with contrast and saturation increased by quite a large margin)

thanks oli, I think I have to change the grass,.the third one with the jets in the sky works well because the original vray sky rendered out is almost exactly like the background image inserted in its place so the lighting and relationship with the edge/outline of the building works better.