I write that during a moment of rage and... sick (not sure if this word is the best since I'm italian...). Btw at least a warning or something like "WARNING IN THIS POST WILL BE PHOTOS OF WORMS... BLA BLA BLA"
You're not posting on a forum of mind readers. The responsibility isn't for other people to magically predict your worm phobia, it's for you to stay off the internet, or at least discussions about modeling worm-like creatures.
That image is from Artanis DURING the Episode 3, we NEVER see phisicaly Artanis in ep 3, so he could really look like in this way. But in other pages (flashbacks of the Episode 4) we see him with the WoL's armor, so we decided to use the WoL portrait for him.
Yeah but even on the last page with the current armor he looks "off", almost like a different person. Combined with different lightning, Aldaris could have a completely different appearance.
In BW Artanis was showed with cut cords and yellow eyes, but we know he have long cords and blue yes, so the comic appearence is more loyal to the canon appearence of the characters.
The cut nerve cords is an error that Blizzard admitted to. Any other change is pretty much a retcon. Which, if "canon" is what you're going for, great. Otherwise, Blizzard is prone to changing pretty much everything to have little or no resemblance to SC1, in which case "canon" doesn't really matter and will probably be changed yet again if Blizzard ever decides to redraw Aldaris to look nothing like that comic.