In both the website and in-game, you can see a bit of footage regarding what the class can do in both awakening and pre-awakening. In the website we have the class introduction section where people can see an overview of the class as well as PVE footage, and same goes for in-game when you are in character creation.

It would actually be more appealing for new players and it would look better if you used PVP footage of players in node wars/siege instead , or just PVP in any farming spot. I'm suggesting this because I was checking out the footage for the class introduction for each classes and honestly it was kind of bland as it was only PVE with no combos, just individual skills being used, and it would actually give players a better look if you used PVP footage instead, as you'd get a better grasp of what the class could do in actual combat. Maybe a mix of PVE/1v1 PVP and PvX.

(Yeah I know youtube exists but if it was implemented inside the game or the website for the class introductions it'd look cooler.)