need help or ideas for my liveroom"studio"

hi guys, i want to treat my living room, the room in which i spend most of my spare time. my other studio is 120km far away, so i also often try to mix things in my living room in vienna. i have only one room and so there is not much space, as you can see in the sketchup file. i really tried to get the best solution or compromise between acoustic issues an living comfort. does anybody has a better idea for my room setup? in the picture you can see that there are 3 fiberglas absorbers behind my desk (not in the sketchup file), does they make sense there? now i want to put 3 cubes with 33x33x35 cm of basotect an maybe a slot resonator at each side in the shelf (sketchup szene2) does this make sense? on the rearwall there is nothing! what should i do there? here`s the sketchup file: https://www.zeta-uploader.com/1140736088 hope you all understand me, english is difficult for me :) thanx for help, gimmick

welcome! please update your profile with your location information. do you have a cloud absorber overhead? what about behind your seating position? maybe you could create some slat panels + absorption to fit over your shelves? this could help make it more symmetrical in there.