That is entirely up to you. Each of us are inspired by different things and if you think that it will help then by all means look at weight loss pictures. I prefer to watch videos of Arnold and Stallone pumping iron in order to get inspiration. The sight of sixty year old men crunching a bench press iron just takes your testosterone levels up a notch. You can try watching body building videos and see if it helps you. Or if you just prefer the pictures stick to them. You can even stick a few pictures on your wall for inspiration.