Dear fellows
Soon, I'll have my first little recording and mixing room. I added a picture of the situation. I have already built some nice DIY Absorber plates + 2 resonators (don't know the correct english term for that one. In German it's called Plattenresonator or Plattenschwinger)
Were would you place those Absorber?

2x: 1.80m x 1m x 6cm accoustic Rockwool
3x: 2m x 1m x 6cm „“
2x: 1m x 60 cm x 6cm „“
1x bookshelf 2m x 2m
2x wooden resonator
Hope someone has the time to help me!
THANKS
Middletom