I have played almost every RPG game that was available on computer in the past 25 years, and Torchlight 2 is among the worst when it comes to telling a story. There is no story in Torchlight 2. Even Tetris has a better story than Torchlight 2.
Same for the color argument - people are often complaining about the "light colors" of Diablo 3 and comparing it to the "dark theme" of Diablo 2. Then we see comparisons of D2 act 3 with D3 act 2. Well done. Nothing, absolutely nothing in D3 is as bright and colorful as the entire act 2 in D2. And if you just look at the end of D2 classic, where you walk through lava areas so bright they hurt your eyes and Lord De Seis's wizards are throwing rainbows at you... compare this to D3 and the very level before Diablo that makes your screen glow dark red like you're walking through an area covered in blood. Really? REALLY?
If you think D3 is not dark enough, turn down monitor brightness, skip act 2, install DarkD3, or play with sunglasses.
Or: just install D2 or TL2, do a full playthrough, and then go back to D3. And you'll notice that D3 beats both games in terms of being dark - by a mile. (Been there, done that.)
Are you implying that D3 had a good story or something?