✨That actually looks really pretty I like it✨
        
                    
             
        
        
        
Answer: saxophone
Explanation: Saxophone is simply an easier instrument than clarinet overall, and is more commonly used in rock music. It's the natural choice. That being said, oboists often find clarinet easier because the embouchure is a bit firmer, which they're used to. ... As Edouard points out, the sax goes in octaves just as an oboe does.
 
        
             
        
        
        
I'd say B since you'd emphasize the existing qualities, 120 sq ft is about a tiny house space or smaller, so it's pretty cozy. You could also counteract the existing moods to help. Think about designing the room altogether, and good luck!