Thanks for your question. Here's my suggestions...

For your legs try Full Squats. These will work everything from the waist down in a quick and effective manner.

For more info on squatting effectively, check out our previous answer.

As for shoulders, have a go at a Shoulder Press using either Dumbbells with your palms facing each other, or a machine that allows you to have your palms facing.

For your back, try Weighted Chin Ups with an underhand grip.

On your arms have a go at Weighted Chin Ups and Weighted Parallel Bar Dips depending on which arm muscles you’re trying to reach.

Good luck!