One unique thing that may help you in all aspects of your training, including the visualization component, is to tape (or digitally record) your workouts.
Ask yourself the following when watching the workout:

• Would you want yourself as a training partner?
• Is your form such that you would ask yourself for advice if you were new to weightlifting?
• What is your body demeanor and your temperament during a workout?
• Are you following all safety rules for lifting?
• Can you objectively look at your physique (or lifting technique) and break down what you need to improve much like a football player will look at game film?

While most gym members will find this recording suggestion to be rather odd, it will go a long way to helping you improve in all areas of your training.
This includes:

• Looking at yourself like a contest judge if you plan on competing in either bodybuilding, fitness, figure, powerlifting, or another strength sport with judges.
  If your sport requires posing, you can tape your posing sessions and compare them against those whose posing routines you admire.
  
• Making sure that you make any necessary changes in your mechanics to prevent injury and improve your safety
• Being able to look at your body language to make any necessary mental changes so that you continually progress

Powerlifters have used this technique for years and it helped them with their performances.
You may use this suggestion for posing routines, fitness/dance routines, and to help you in any other area you wish.