That looks quiet and positively spacious compared to the last open office environment I did time in.
Imagine that same space but 4 people between the column and the window instead of just 2. Then make the space 3x as long. Then reduce the space between the backs of the chairs by 50%.
Even though everyone in the space was doing individual programming / sysadmin work, the space was extremely loud just from a few spontaneous conversations between people working on the same thing together. Everyone wore headphones nearly all the time, only taking them off if they needed to talk / shout to the people near them about something. Often, if you needed to talk with someone sitting 4 desks away, the easiest way to do it was over IM.