I'll start, here is my level 50 Necromancer, currently playing through the campaign, starting act 4 now.

Closeup:

Haven't transmogrified anything yet, I think it looks cool, but there are some nice headgear designs, with human or Khazra skull motifs.

46 druid, starting act 4. Always transmog because I don't particularly like the aesthetics of most druid gear, and have to colour everything red so my buddy won't accidentally run after other players all the time because "you druids all look the same".

Lvl 15 Ice Shard Sorcerer named Peach. As for the campaign I am now playing through Act 2.

My barb Grothmog. He's an angry boy.

My Whirlwind Barb - currently at lvl 61, trying to grind for any relevant unique or the gauntlets with Grasping Whirlwing

Started with Sorc but switched to a Barb later. Lovin the raw power^^ Anyway, when I have time, I switch outfits to suit the climate. Level 69 btw ;)