This will save the file to your Photography or Downloads folder!

Select the Rectangular Marquee tool in the Tools panel. Click and drag to make a rectangular selection.

If you want a square selection, press the Shift key as you’re dragging.

Choose Solid Color

You will see that this created a new colors fill layer in the layers panel

Select the Elliptical Marquee tool in the Tools panel. Click and drag to start a selection. With your finger still down on the mouse/trackpad, press the Space bar on the keyboard too; then push the selection back to the edge of the object you want to select. With your finger still down on the mouse/trackpad, release your finger from the Space bar only, and continue to drag out an oval selection.

Choose Vibrance

Select the Lasso tool in the Tools panel. Click and drag to make a free-form selection. When you’re back near the beginning, release your finger from the mouse/trackpad to close the selection.

Choose Brightness/Contrast

Select the Polygonal Lasso tool in the Tools panel. Click at the beginning of a straight edge, and then release your finger from the mouse. Without pressing down on the mouse/trackpad, move to the end of that straight edge and click to attach the selection. Repeat around the area you want to select. When you’re back at the beginning and a small circle appears, click to close the selection.

Click the small circle to connect and close the selection

Now you can select a color from the other picture (notice your cursor is now the eyedropper)

Click on a BLUE color somewhere in the image

Click OK