Well, I like that house ! Nice one... :)
When I lookin' this images it's looks like mine...And I feel there is the problem with the shades's reflections and the correct balance between the lights and shadows. If you don't calculating with the reflections , then you got this. For example the frame for the windows (indoor) looks like the wall. Same color, same reflections...For my eyes, but I have four! :)
Maru has right, but maybe the contrast is not just the color contrast. For me contrast beetween the light and the shadows...If you have a lot of light on the screen, like this, than should be much darker shadows. Special when there has an snow. I think one of the most important the shadow ! More than the light. When the light is missing, that you never notice...but when the shadows missing or too harsh, than instantly see. Of cours in the overcast day, ther is tha shadow missing...and the sun is missing too...Here you have sun, light...but where is the shadows? You always see first the shadow. You have noticed, when there is no shadows...This is the human eye's "feature"... :) And the colors is too...so I think you have to make saturating it. Just in the output lift the black with 0,05 or less. Or use color correction map and make saturated...There has a lot of controls. So the colors is to harsh and crispy for me...
Well, today I started to figouring out a new workflow to achieve a more correct and close to the real renders...I hope ! I think the reflection is same important like the textures and colors....Well...I just thinking too loud....
Anyway...
