Oh man where to begin with this.
BladeDancer, Lets dig into the bladedancer. I envision the bladedancer being mastered in the fine arts of duel swords. Spinning and weaving he slashing and cutting making dancing and killing one of the same. I want the passive skill tree to look exactly like the beastmaster tree. Full of dance buffs that buff nearby allies and self. Example
Dance Of Might - Gives you and nearby allies +5% global damage per point 0/5 when using a melee skill (5 second buff/5second CD)
Dance Of Frenzy - Gives you and nearby allies +5% attack/speed per point 0/5 when using a melee skill (5 second buff/5second CD)
Dance of Protection - Gives you and nearby allies +5% armour and protections per point 0/5 when you use a healing skill (5 second buff/5second CD)
Dance of Death - Gives you and nearby allies +5% maximum health per point 0/5 when you kill an enemy (5 second buff/5second CD)
Now for the marksman. Based on the description, your going to have all the element and ailment types of arrows to use so dont see a need for these type of nodes on the tree. There will obviously be freeze/stun there as well, so the only thing that i would add that would be different is have poison/bleed pools follow you as you run so as you kite enemies the further away you are the more damage they take if there walking where you have recently been
Bleed Pool - As you run there 20% chance per second to leave a pool of blood that bleeds enemies that run through it
Poison Pool - As you run there 20% chance per second to leave a pool of poison that poison enemies that run through it.
Last but not least, the falconer.
Since by name and description its going to have a falcon companion, ill stay away from my input on solo companion nodes, what i would like to see on its passive tree is the ability to bond with its companions and share damage.