Your pictures seem to be distorted and make the room look considerably narrower than in real life. assuming by the skinny chair. That said have you tried some bass traps to damp the bass in room?
Maybe it is worth looking at having a company who specializes in room acoustic look at the room and calculate the room nodes etc. and give you suggestions on room treatment. I know there is one company where I live that takes your measurements and calculates the room and where/what to use for treatment. They only charge $150 so reasonably cost effective, they also can supply the panels etc. Optionally put your room dimensions into one of the online calculators to get an idea.
My first thought is the Arials are going to be too much for the room but potentially with proper room treatment they could work. If not for small rooms, I've yet to find a speaker that can do as much as the AudioNote UK AN line like the AN-K or J for that small room. Very musical speakers, as the Arials are from memory, and decent bass for a stand mount. Note reason i recommend AudioNote speakers for small rooms is they are designed to be corner/wall loaded.