Apologies for bad quality.. how does this picture demonstrate informal balance?

The right which is the window is heavy in comparison to the left due to the scenery. The chairs balance the left because they create space. The person with the book and cup balances out the empty space on the left.

Ibelieve so yes. the industry for electric guitars (such as gibson, fender, prs, epiphone,ect) has went down over the past few years so i feel things will come back up for the vintage style electric guitar (such as the gibson les paul, fender stratocaster/ telecaster, gibson sg, gibson flying v,) so i feel like they will be bringing more vintage style instruments to the stage-jaydoe