I only played with the Archer so far,but I can tell ya that this map looks more Warchaser-like then RPG-like.
there is something terribly wrong with your archer:her main atribute is agility,but it's the LOWEST of them,with intelligence being the highest,and strength the second highest,you should fix that.
your tooltips are too vague.you only tell what the ability does,and doesn't tell the player how much damage that skill does,what's the cooldown,the damage increase with each level...you know,the basic information about the skill.
add side-quests,more items,more classes,take a look at other RPGs maps for ideas,try to use custom and/or triggered spells,etc.this map is your first map,and it's early alpha,so I won't be too harsh.given these two conditions,it's a nice map.
voted 3/5,because it's a pretty good first map,and can improve a lot