Shadow Archer Build (Tree & Theories)

So yet another build question but here it goes anyway:

I wanted to build a shadow that relies completely on the Bow. I realized if I pick shadow as a base I'd reveal more Critical Strike nodes and build that to complement the Bow (giving it more damage capability).

Here is a tree I mocked up that tries to accomplish three things:
- Bow Stat Modifiers (Maximums)
- Critical Strike Chance/Multipliers (as many as I could get without travelling far)
- Health Nodes

Side Accomplishments included:
- Boosting Evasion
- Boosting Mana Regeneration (i'll have to rely either on blood magic or reduced mana for skills)
- Attack Speed/Projectile Damage Modifiers


So as you can see this actually feels quite basic, so I'm asking those who have built something like this how it can be successful and what I might need to do to improve it?

I haven't leveled up my 24lvl shadow's passive tree and have dozens of points saved up and wanted to get the community's opinions before I venture out on this quest.

Thanks for your time today and hope you're all having as much fun as I am.

-- A

Here's the Tree: