It takes time to see a landscape and it takes time to look at a picture of a landscape. Our vision only allows for a narrow cone, 2 degrees, of detailed vision. What we see is a construction, a fabrication of what our mind thinks is out there in the world.
In the landscape its impossible to see every detail at once. The harder you try, the harder it gets. As you look around, that cloud has moved, the light has changed on those trees, and you can never keep up with what those waves are doing.
But even a still image can be constantly changing. Everything is different every time you look at it if you pay close attention. The expression “I know this as well as the back of my hand” should remind you to look closely at the back of your hand - you don’t know it at all!