The DS version of Orcs & Elves is an enhanced version of the same game released on cell phones. Most of the improvements are visual, though there are also a few minor enhancements. Like most of the game, the visuals have an early 90's vibe; most notably, Wolfenstein 3D. Enemies are flat, 2D sprites that feature no more than a few basic two or three frame animations. Dungeons, on the other hand, are rather impressive. Unlike the enemies, they are done in 3D and feature a few more details. Really, if you ever played Dungeons & Dragons, this was probably the game you pictured in your head.
Sound isn't much of a factor. There are a few basic sounds, though the game is mostly silent.