Nice. How much it cost to make such panel?

Are you planning to have a full home theatre set up (e.g. 5.1 or 7.2)? Practical/serviceable power points and easy cable management should be an important consideration, not just the aesthetics. Otherwise you have a nice cabinet, but the view is spoiled by countless unsightly cables running all over the place.
The problem with most designs is that there is not enough place to hide wires, and difficult to replace/service them when the need arises. The other is the lack of plug points..