a serene empty classroom with chair, desk, and whiteboard bathed in soft light against a cyan wall

classroom empty chair desk whiteboard light cyan wall room setup teacher principal serene beautiful peaceful inviting workspace educational school learning interior design architecture furniture clean organized bright soft modern professional calm quiet academic spacious teaching study studyroom focus blue minimalist decor office environment background tidy atmosphere sunlight reflective professionalspace academicsetting tranquility education instructor student emptyroom simplicity abstrat art ai generative generated 3d