Is White controlling this game? Which side is in a better position here : white or black ? Is White controlling this game as all rook, knight, bishop, queen are in open position now ? What are the chances for black to come back ?

[fen "rn1qk2r/1p1b1pp1/pPp1p1np/P1PpP1b1/3P4/1Q3N1P/1B1NBPP1/R3R1K1 w Qkq - 0 1"]
Yes, white is better in this position, because it controls more space. The black position is somewhat cramped, particularly the queenside pieces (Bd7, Nb8, Ra8) are difficult to develop.

The queenside pawns are blocked so the play is going to happen on the kingside. (there might be some tactical ideas for white in the far future related to a piece sacrifice on a6 or c6 creating a strong passed pawn on b6; but for the time being nothing is going to happen on the queenside.)

Typical plans for white in this position: 


quickly move pieces to the kingside before black can develop any counterplay
potentially exchange the active black pieces (such as Bg5).
create a pawn break/pawn storm with f4-f5 at some point


Typical plans for black:


develop queenside pieces
create some kind of counterplay (perhaps playing f6 at some point later on, without weakening the e6 pawn or kingside pawn structure; having played h6 already is rather bad in this case)


Without giving any concrete lines it seems to me that the white plan is much easier to achieve than black's