Terraria vs Minecraft

With news of Terraria coming to the Wii U and 3DS, as well as the anticipated Terraria 1.3 patch, SheAttack decides to take a fresh look at the game. Today, Terraria looks like a completely different than it did when it was released back in 2011; not to mention it continually got a lot of flack for being the "2D Minecraft clone".

Is Terraria really just a 2D Minecraft clone, or is it something more?