It needs large size decoration as painting( beige and black colors theme) candles- creme color , no blue.

Wooden Masks, statuettes

What Patricia said!

You don't need the piano in the conversation/fireplace/TV area. Move it down the wall, and pull the loveseat into that space. The loveseat might also be able to work at a right angle to the sofa, but I can't quite tell the scale. Your coffee table is OK if you place it nearer the loveseat, as the sofa already has side tables. Beautiful potential!

Yes I agree with Patricia and Sooz....if the TV and piano can somehow be relocated, that would definitely help with the rest of the room's layout. IMO, the TV would work better on the current piano wall with a long console below it.
However, if the piano needs to stay in the room, would you be open to replacing the love seat with a chair (or 2 chairs, depending on space)?
Either way, I would pull the seating in closer together, in an L-formation, as already suggested, with the coffee table closer to the sofa.
As for the lamps, I think they may be a tad too short. Maybe you'd like something a few inches taller. This would be the same for the candles....they need to be taller.
And as budget allows, perhaps look into replacing the end tables to ones that sit at or just below the sofa's arm height.
Anyway, just a few ideas. :-) I agree....this room as great potential!