Some of the hens consistent with brown leghorns and at least one of your cockerels does not look right for a game. You are likely to be OK in that you are not dealing with a pure game flock. Hybrids not as bad generally. Rooster lost does have the modifications and general look of a pure game. Stag on tie cord appears heterozygous for pea comb. Pea comb allele more likely to come from game.
Otherwise your setup is stellar for keeping two roosters. Even if straight Brown Leghorns, I would go one rooster per pen. Pens too tight for more than one unless groups are male only.