yes, elevation is good but there is confusion about the window box design.

car Porch area is less

yes you r correct..

The elevation as such looks great you may include greenery on the boundaries.

Just too many horizontal lines on the front facade may be a few lesser would be good.

Parking space is valid point, raised by respected member, with respect to floor plan. You must correct that.

For Windows it is better to have a ledge for rain water and sun.

Thanks,
Nitin
CORNERSTONE DESIGNS
Bangalore

thanks.