The whole review is over 2,000 words (and has screenshots, and they count for a thousand each, right?), but here's a tl;dr version for anybody who can't be bothered reading the whole thing:
If somebody told me six months ago that I'd ever play a game as beautiful as Trine, I would have scoffed, and yet here I am, playing its sequel - a game that takes its astoundingly high production values and raises the bar to unimaginable new heights.
All in all, Trine 2 is a fantastic game. It not only raises the bar well above Trine's originally high standard of presentation and charm, which alone is a massive feat, but also manages to do it for the duration of a much longer game. There are aspects of improved flow that seem to have lessened the impact and reward of individual puzzles, but the game as a whole is still fulfilling and ultimately, more seamless for it.