Voxelgram 2 is the perfect way to spice up the standard nonogram formula. The option to have 2 colors or 1 when solving puzzles-and for it to keep your solves separated between the two modes-adds a lot of variety. There's a decent amount of levels, and there's also a workshop that adds even more (though it's sadly pretty empty; creators, get on that!)

There are a few improvements I'd like to see, however:
1. The ability to select the angle of your diorama when creating.
2. Individual puzzles in addition to dioramas. Asking people to create several puzzles and arrange them in a diorama is a fun idea, but it's also quite a tall order. I know we could upload with a single puzzle, but the limits on size (15 x 15 x 15) do hurt the ability to create truly complex, single voxelgram puzzles.
3. Better handheld controls. You often have to rotate quite a lot to not only select the square you want, but to ensure you can drag in a line. Dpad support and the ability to move along each axis without rotating (possibly by holding another key like the right trigger on a gamepad to move inward) would be a huge help.

All that said, it's extremely relaxing and enjoyable. I haven't played the first game, so I can only go off of this game in isolation. The two color mechanic is very enjoyable once you understand it, so having that option plus access to all the original voxelgram puzzles (if you own that game) gives you so much content.

I just wish there was a way to import all of the workshop items into this one without each creator manually needing to do so.

Excellent puzzle game, with varying levels of challenge - some will take minutes, some maybe over an hour - which also incorporates the original Voxelgram puzzles (and DLC!), with the option to do ALL the puzzles in both one-color and two-color (basically doubling the number of puzzles in the game). Well worth full price, even better when it's on sale. I don't particularly care for the "random" procedurally-generated puzzles, but even excluding them there is plenty of content here to keep you coming back. The user-created Workshop puzzles are sparse compared to the original's but it is early days yet and I'm sure there will be more to come.