Well, I'm not sure about the "style" of the furniture, but for sure you can't completely depend on google image results.
The word صالون is probably derived from French (Salon) or something and to my knowledge it is mostly used now for the barber shops (and ladies' hair styling shops). But putting aside dialects, and focusing on MSA, the living room is غرفة المعيشة and you can check it out on Google Translate.
Just occurred to me that some people also call the Guest Room as "صالون" - so we really have to stick to the MSA meanings. Dialects come later
I agree. The semantics of living room in English entails, I think, that there is only one of them in a house. So saying "this is a living room" sounds, to me, really weird. (It could come about if you're looking round a museum of rooms and their furnishings, like the Geffrye museum in London, but that's a rare occurrence).
You can, if you like, use Google Translate and type (or copy paste) the two and click on the speaker to hear the letter spelled out (a second click will produce the sound again slowly).
Anyway, س is a normal "S" as it is in English and many other European languages. ص, however, is the tricky one and it exists in some European languages (though it might be lighter than its Arabic equivalent here). If you are familiar with German, the ligature "ß" has this sound though gently. Also, the "S" in "sun" in British English is probably close to ص as well.
The sound of ص can be described in terms of phonetics as "velarized S". Meaning, it is "S" but produced with heavy air out of the mouth or a bigger volume of air out of the mouth. Think of "L" in the Spanish "La for example, and "L" in the (American) English Long; The English variety here is heavier than the Spanish one and has more air. This is a velarized "L".
Now, for ص, try to "S" the normal way first. Notice the position of the tip of your tongue against the ridge of your teeth. Now, try to make the area just behind the tip of your tongue touch behind your upper teeth set. If you do that, your tongue in the middle would automatically curve down and make the chamber of air inside your mouth bigger. With this move, try saying "S". Of course it won't be easy from the first trial but I'm sure it can be conquered with few simple trials.
If all fails, I think there are probably Youtube videos for Arabs and non-Arabs spelling out this sound. I might look for some if you like and post you the link here in case. Good luck.