From the pic you show us an information is missing. In the right upper corner you should have an icon with "Reward : A new quest" basicaly.

This can be a hit, but not enough for most people. There, like for the beginning of the game you should add a Bunny pop up, with darker background to highlight where to look for, telling the player what to expect and where to go (and we never have enough of Bunny anyway).

One thing you can add, if possible is adding a spot toward the zone the player should look up next. Like a blip ona radar telling you to click on a realm, a scroll and so on. So, with this added focus maybe new player will get the hang of it quicker.