The trolls are preparing for a massive invasion at the borders of the Crown Kingdom. This is one of the many troll camps. Right now the troll chieftain of this camp is making an alliance with another Troll chief!
Sorry to bring bad news. All I see here is a collection of figs on a plate. In truth, you tried to add some detailing, but not enough for a 2 I'm afraid. Moreover, most of the oversized pics are superimposed by the groups list on the righ, just like Dennis Price's Glomshire Knights. 1 point.
Well, you should be proud to have posted your first entry in the MOCathalon. Unfortunately, this is primarily a building competition and there's not enough build here. It's mostly just placing figures around on a base. You did present it well, with large scale pictures and a little story, but we want to see some build! I can only award 1 point, but don't get discouraged. For your next category, do some research and see what the other competitors have been getting high marks for.
For me, they're orcs but that depends on the fantasy book/world you prefer. In some, orcs are more monkeymen with fur and not green. Lego made the scandic trolls. Nevermind, the small wall is nice, but the camp is missing a fireplace, a small tent or something that shows, they're camping here for a while.
Overall, good job! I really like all the minifigs used in it. I also really like the small stone wall you made. You might want to consider raising the camp (Like adding slopes and hills), a river, etc. Good luck in the competition!