I always found it interesting how Daniel is the same age in all these endings yet he manages to look completely different in each.

Each Daniel has a different vibe to him, dangerous, playful and killer on a leash. I dont know why but his Blood Brothers version seems a lot more serious and dangerous than his lone wolf version and i cant fully explain why its just the vibe I got, he also seemed kinda sad under the serious expression until Sean gives him a smile and reassuring hug. Dont get me wrong his lone wolf one implies he has nothing to lose and has done bad things but the vibe he gives is more like he's lost rather than a genuine bad person.