Simple built-ins...
Q
Looks like it could be a basement office. Light and airy. Wall panelling is cool. Painted wall with wood (or other material) inlay.
I like it all...
Built-ins on wall for more storage.
Frost (or other application) the glass on French doors.
Seating with storage under Windows.
Coffered ceiling with lighting. Add color changing rope led lighting.
Simple built-ins...
Q