House Design Sceen

I am processing a project which show and simple design house, I need a beautiful enviroment for my sceen which with below elements,
1.sunny skybox, best in HD resolution. and wide ground.

I have search some demo by google, the most coloser I can get is this,(, But it look terrible,even I can see a sky box border line!

Is there anyone have good ideas

Maybe some of these skyboxes can help: