Whats a structural observation for a leaf and the flower (red tulip)

Like any other multicellular living thing, leaf structure is made up of layers of cells. Viewing the leaf under the microscope shows different types of cells that serve various functions. Using a microscope, it's possible to view and identify these cells and how they are arranged (epidermal cells, spongy cells etc). To do this a compound microscope is required given that it allows for higher magnification.

While a compound microscope is ideal for viewing the internal leaf structure, a stereo microscope would be the ideal tool for observing the external structure of a leaf (vein, lamina etc).