Kai NRG

The flaming one is Kai's symbol, I got it from a Ninjago contest years and years ago.  The cartography one--I assume you mean the sand blue and brown viking shield?  I can't say I remember very well where that came from... something in Historica, I think there was some kind of naval challenge.

Tags used to be given out more frequently five or six years ago, usually as a reward for participation or winning in a competition or challenge.  I've seen few new ones in the past couple of years.

Congratulations. Yeah, it's probably that shield. It's 3rd to me, the ninjago symbol being first.