风景画 typically refers to Western-style landscape painting (oil, watercolor) — the genre where artists like
莫奈 (Monet) and
透纳 (Turner) are placed. The Chinese ink-painting equivalent — mountains and rivers — has its own term:
山水画 (shānshuǐhuà, 'mountain-water painting'), which is older and rooted in different aesthetic conventions. The standard measure word for any framed painting is
幅 (fú).