Unless you installed any mods, the game looks exactly like it did in 1996, albeit at higher resolution. There's plenty of very awkward and ugly 3D models all over the place in the original.
No, with the same resolution statues, light sources or altars look different. In the first dungeon the most obvious example are medium size statues as those on the third room from cave start. With higher resolutions the contrast between flats -npcs, enemies or loot- and 3d models and its textures is far more ankward than original DF examples. However this is not my main concern, but modders priorities -and their tastes and gaming experience...- and specially the original UI/movement lack.
The UI is identical too. If you want the Doom-esque status bar with your character's portrait that takes up the bottom part of the screen, I think you can get that back, but the cleaner version DF Unity uses by default was available in the original game too.
Doom-esque? Cleaner version? That UI with shortcuts for map, spells, rest, cursor modes, status and other info is the default DF mode and the way in which played vast majority of Daggerfall players before Morrowind -and probably later, until Oblivion or Skyrim release-, a new version of Arena UI, influenced by Ultima Underground and other single character rpgs released before Doom -as Legends of Valour an explicit influence in TES-, which also were inspired by blobbers and other party-based rpgs since mids 80s.
Daggerfall without classic UI and specially without cursor mode is not Daggerfall.