Firstly, your opponent does not use AMC, so your DMC would be redundant on the field to play against no specific player. It would be better to push the DMC up to the mid-line to form a flat 5 midfielders to battle for ball control.

Secondly, you surely want to win in the 2nd leg, so let your players press on whole pitch for more effectively in battle for ball control.

Thirdly, your DC are better than the only ST of your opponent, and it seems to me that your opponent would attack on the middle as in the 1st leg, so you will need only 3DC and convert the 4th defender into ST for more attacking. Put blue arrow on your central DC to prevent your opponent's counterattack.

In summary, my suggest formation is that:

-------ST---------ST-------

ML(UP)--MC--MC--MC--MR(UP)

-----DC--DC(DOWN)--DC------

Attacking mentality, focus on both flanks, mixed passing, counterattack, no offside trap.

Lastly, your team are about at the same quality as your opponent, and in the 1st leg, you lost in 2-1 score, so you will need some luck in the 2nd leg to overturn the aggregate score. Good luck!