I selected the red rectangle using the rectangular marquee tool and used the Hue/Sat. adjustment to change the color to orange.
I created a new layer and filled it white. Used Elliptical Marquee tool with a 20px feather to cut out border for image.
Paris at Night
Used Elliptical Marquee tool to copy and paste the Moon to Paris background.
Happy White People
I used a white layer, the elliptical marquee tool, and a Gaussian blur filter to create this effect.
Shaking Hands for Houston
I used the lasso tool to cut out the shaking hands and pasted it to the Houston skyline photo.