You should also think about some vocation balacing, because at current stage druid is just way too strong, and mage kind of weak.
After some sillpoints his healing is really strong what gives him great sustain, your magic skill tree basically is buffing only druid, not many things for mage (not too many things at all actually, what would be nice to see so there would be more and unique builds).
Also, druid strike spells ( at least those first ones ) shoot at target while those that mage has don't.
+mage who doesn't know fire magic usage can't be a true mage ;P
I am doing it slowly every time. If you have followed my patch notes you can see my main nerf target has been druid.
If you say that skillTree only buffing druid then you don't see the powerful skills, what I hid there for mages.
Although the druid seems to get more power from skillTree, but it came with reason.
Mage is very powerful in the endgame, but is quite clunky at early game.
Druid is easy at start of the game, but it felt to me his power is too crappy in the endgame.
Knight is very hard in early game and while he continues playing he is the only class what I feel where it belongs, but very hard to play.
I made skillTree to buff knight and mage early game.
I think I did fine job there. Forest takes less time to complete and player will still learn the lesson. (food is important, items matter)
As it so happens, druids got more direct improvements from skillTree what also help him with early game.
I am aware there is not enough builds in game.
In matter of fact there is only 1 themed build for each vocation:
druid has support build. (powerful mend)
mage has kamikaze build. (sick improvements to barrier) (main item for build is from "you shadow" solo-boss)
knight has armorup build. (failed with that >.>)(I will make these items useful when I create undead dungeon)
Rest of items simply improve the character. some more, some less.
Keep in mind this is very early beta and there is only 3 days worth of content.
My current patch goal is to make the current content out there as a whole and give a face to my server.
All in all, I will chip away some more power from druid next patch then.
Btw, if you don't have 20 skillpoints to spend in skillTree, don't compare yourself with other classes. Get to endgame first.