I had tried it, but it did not give me a presentable and near realistic effect. So I decided to do a 2 dimension drawing of the room and colour it accordingly.
When viewed on full screen you feel like you are in that virtual room...

Thanks @jamplu for the observation.

you can download the crown color app and see all the shades of green which are more pleasing to the eyes and readily available.

It will be easy because even when you finally start the actual job you will know exactly which paints to use

@wangu.n, you see the trouble is that the green colour together with its respective derivatives (the shades, the tints and the tones) are in the "cool environment" category and making the green dominant will therefore change the client's specs.

Nevertheless, do you have the link to this crown colour pallette application?

For a brown floor, I wouldn't go for any of your options, look for a color called peach for the wall, make the ceiling white or cream white. A dark color for the door will work fine.

A peach wall? That house will be so hard to decorate. I'd go with neutral colors ... lights shades of grey or brown. Like someone else said, use pintrest to give you ideas. Sometimes also the client needs to be guided in the right direction.

And why does she want a green door? Is there some significance.