The yellow/orange of most torches contrasts the visual style of the Guardian’s blue flame too much. I think the standard torch flame should render the same color, ie: blue.
I understand a number of torches have their own unique flames, like the Sylvari Tier 3 Warden Torch. Leave those as they are. But any standard torch should render blue on the Guardian. I think it would benefit the visual style more.
I don’t play a Mesmer, but perhaps something similar with them? A pink flame. That color being the main reason I don’t play a Mesmer
Just a small touch that would add a lot to the distinction between the class weapons. Even as an Igniter, there is no reason the Torch can’t be powered by the wielder’s magic.