By the way, it's quite chilly in there year round...we all have space heaters! I'm thinking a French cottage feel with a lot of natural textures, green and botanicals would warm things up and go with the furniture which echoes wrought iron and distressed wood.

Adding to my comment above with 2 desks facing each other ..... I'm thinking if you place the desks as a grouping ... at an angle with the corner as in the pic, (creating a triangle) desks and walls corner ...between both windows, but moved toward center of the room, the space might work for you. You will have your backs to the other walls and not any windows. Kinda catty-corner to the room corner.

Commercial office acoustics: When you go to a church, you feel religious. A lot of that has to do with church acoustics. Office acoustics impacts visitors' first impression a lot as well. People unconsciously expect to hear certain acoustic qualities in a professional office. This space, while has a lot of aesthetic potential , but hard walls, ceiling, and floor, ----- factory acoustics may or may not give a positive first impression to your clients. Only you can tell. Carpet and rugs are not effective for speech frequency improvement. The two large art canvases can be better if you have 3" thick fiberglass behind them. Have them hung near the conference table. Where you have the conference table may not be ideal. Low building, single glazed windows will have annoying outside noise infiltration. Also, a possibility of sound transmission from next door tenants thru air conditioning duct. Lack of speech privacy can be a deal breaker for some financial and legal clients. Consider white noise generator, if this is an issue. dcarch

What if you turned the desk so the person sitting is facing out rather than looking into the mirror. Look into getting a square rug for the space. what about some floating shelves for storage on the bike wall? What is around that corner? I found two cool options for the mirror wall one would use command strips to mount artwork: https://www.apartmenttherapy.com/plagued-with-dated-mirrored-walls-5-design-ideas-to-make-them-work-241744 or put a film or decal on them: https://www.spancraft.com/antique-mirror-collection.html