Why does the Sun illuminate the Earth differently throughout the year?

The amount of light and heat that comes to the surface of the Earth depends on the angle of incidence of the sun’s rays on this surface.

The thing is that the Earth revolves around the Sun, but does not revolve in a circle, but in the form of an ellipse, it turns out that it is farther, then closer to the Sun. Accordingly, the sun’s rays are also farther and nearer. But the Earth also rotates around its own axis, which means that in different periods of the year the Earth is turned to the Sun in different ways, respectively, and the rays fall in different ways, this was the main reason why the Sun illuminates the Earth in different ways in different periods of the year.