You are not the painter but the canvas

As a favorite author has said

Painted by other individuals

Colors are chosen by emotions

Hurt makes the blues

Deep blues are the sorrow

Anger makes the reds

The burnt reds are the burning rage

Happiness makes the greens and yellows

Happiness however usually carries a smaller brush

Your painting is made up of so many colors

Until they all mix

Eventually, the colors turn to brown

Or if you're lucky grey

All the hues lost

All the brightness took away

Like a river bed in the heat of summer

Paint will dry and it will crack

The surface is not smooth

But the paint is brand new.