The cooper is too dark. You can't make out the paint job, and the reflections on the roof and back are dimmer than the one on the front, which is too close to the viewer, and too lonely - there should be a reflection on the car for each light on the house.

Also, to have a shadow that hard edged and prominent, you are looking at bright sunlight, but you have a sunset-ish horizon...

Lovely composition, but the lighting issues are hurting it.

Tnx for the comment Mossy B, i admit i struggle with my lighting.
Thats why the car is only lit by the eveningsun, explaining the soft shadows.
Need to find a way to make my spotlights to work grrr.

The reason that the lighting & reflections are dimmer on the back and roof is a 2 color paintjob, i added another step in wich its better to see

Author as a suggestion if check the exposure level perhaps that may help. All in all I think this is a nice render though.

Fantastic render author...gl

nice image

Great work on the house, I really the the entry overall yet as for the purpose of the contest. I like the house and scene more than I do the mini, which its not really the point of this contest. Great work nevertheless