How to remove shadows cast by Structures?

How can you remove the kind of shadows cast by a large structure such as pictured?

these shadows


It would be pretty difficult to do so, but adding glowstone or torches underneath carpets will remove the large shadow. I would recommend using green carpets, to blend with the grass. If you want, you could also use daylight sensors to turn on and off Redstone lamps for when it turns to nighttime so that the light doesn't look too out of place.