Photo editing of photoshoot images

Requirements:
The width times height of picture must be less than 16 million pixels.
Remove background.
Touch up/airbrush the model and clothing.
If anything is too dark or light correct this.
Remove any imperfections.
Longest side of the picture should be more than 1600 pixels.
Shortest side cannot be less than 500 pixels (keep it to the highest quality possible).
Crop the image so that any excess background is cut out and the focus is more on the model and clothing.
If any other corrections are necessary please do these.
If you are unsure about anything please check with me.