Go with Improved Reflexes 3, Initiative is king in combat and Improved Reflexes is more profitable at Rating 3 (Rating 1 give 1 Rea + 1D6 Ini for 1.5 PP, Rating 2 for 1.25 and Rating 3 for 1.167).
Note that if you take the Spiritual Way you don't need to buy the Mentor Spirit quality as well, you already get it from the Way.
You need a better ranged option. Throwing is generally good for Melee Adept because they have high STR but you don't with your build. 4DV is really weak and will be easily soaked. Go for Pistols, Automatics or Longarm instead.
Perception skill is quite important if you don't want people to sneak behind you.
You resist Astral damage with Willpower only, with 3 WIL you won't survive long even against an average spirit (you also roll 7 dice for defense, not bad but not enough to compensate 3 soak dice), especially considering that Nerve Strike is useless against them. So Astral Perception is cool for the occasional Assensing roll (which you don't even have 1 point in) but you will be geeked quickly if you try to fight there.