A smile and a little good humor go a long way, and this design is a great way to show that you're working hard and taking things seriously, but not to the extent where you've lost your sense of humor.
We're all a work in progress, and especially so when we're working out at the gym. From the moment we decide to join up and start attending a gym, we're on a journey. Sometimes that journey to fitness is hard, and sometimes it's enormously rewarding. The secret, regardless of the thousands of pages you could read about it, is just to stick like glue to your goals, and never quit.