可以说："There are several paintings/pictures on the wall."
来源：这是一个通用的英语表达方式，用于描述墙上的图画数量。
英文例句：
"I love the artwork on the wall. There are several paintings that really catch my eye."
翻译："我喜欢墙上的艺术作品。有几幅画真的很吸引我的眼球。"
"The decor in this room is stunning. Look at all the paintings on the wall. There must be at least a dozen of them."
翻译："这个房间的装饰非常惊人。看看墙上的所有画。至少有十几幅。"