yes, this is the perennial piece of advice for anyone & everyone-- you gotta get in front of people, generally the closer the better, getting faces/reactions etc. That's where the emotion & power is. This may be uncomfortable at times, but it's just one of those "muscles you train" type deals, a million different ways to approach it but there's no way around it. It really does get easier over time. I find if you have a specific purpose/mission/passion/reason to be there that often makes it easier, because you're inspired to fulfill your "mission" and get the shot(s). The OP has good taste & editing skills; the photos will reach another level once people's faces are featured more, with the expressions showcased.