do you have some photos of iner space ?

Yes, but it is under construction.

And this render...

Ok, use a soft yellow light. not pointing direct in front of tv or projector picture. Maybe to use light behind tv screen (it will give you floating effect) You can go with beam of plaster construction with light inside or some decorative light wall box http://www.lyco.co.uk/blog/wp-content/uploads/2014/07/oslo-led-wall-light.jpg

I can get a view of top edge of window and top of wooden construction, but for exemple the beam can go all the way from construction wall, through wall where is the existing light, and end where window start...

and some light on the top four walls

Do you mean at the screen or around the room?

Never mind my last comment. The new comments did not reload untill I gave mine...

around the room

The top of the wall construction is not finished yet. It will be about three times higher, untill it meets the ceiling, like you can see on the 3D image.
That means that the beam/light construction will not be in one line with the top of the wall construction. Also it will be a little low (at 1,90 meter from floor level)

@ Gray & Walter, Ltd: Down lights 'and' a chandelier or just the chandelier?

Could you make a cove around the top of the wall, where it meets the angled part, and put a LED light tube in there?

Something like this I mean

yes, but it will not be very high, and I'm concerned it will break the height of the space to mutch...

but it looks very nice on that photo you posted.

Will it look good on our angled walls too?

Do you mean halfway up your ceiling for example? Hmm... I would do it where the ceiling hits the wall. It will be above eye level, unless you are 2.10 meters tall. You even have systems that allow you to have the lights change colour, if I'm correct it's remote controlled or it works with an app. Not entirely sure, but worth finding out?

You can also consider building lights into the walls just above the floor

Or have wall lights at about eye level that shine upwards and downwards.

Like these

yes, One option is above eye level, about 40 cm above the screen like Aleksandar Suzic posted, or higher at 3 meter for example.

It's not easy to hide wiring in the existing walls with scones, so lighting at feet level with spot lights or above eye level with tubes can be an option.

I have seen colour changing tube lights from Ikea or Philips.

Karwei en Praxis hebben ze ook https://www.karwei.nl/assortiment/verlichting/led-strips/c/verlichting_led-strips

Thx!

or you can hide wires buy building a "box" from one to other wall scones

exemple

A cove on the right wall will overhang the screen. I don't think it will look nice....

Floor lamps like this one, that give off a soft light, would be good too.

This one is fun and a very reasonable price. You can hang it or use it on the floor in a corner behind the couch maybe.

Not implying that someone should sit in the corner, but I mean that this kind of lamp could be good to give light to dark corners.

What about lamps or spot lights at floor level shining up?

Or with more spot lights.

Do spots like this, but pointed upwards, work for that idea?

I wonder if they will still shine down, since they are going on an angle? Not sure. Can't get my head around it now, but it could be a great idea. You could go to a good lighting shop and ask for their ideas.

That is a really good question

I'm thinking about this build-in, but has only 3,6W led. Two on the right side and two on the back (projector wall). I wonder if this has enough light....

and this spot light: three above the screen and two pointed to the left side wall.

Which of the three above would you suggest??

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