Any ideas on how to improve on this Ninja/Assassin?

Darkwave Surfer
13/7 Monk/Rogue
Lawful Good Human


Level Order

1. Rogue. . . . . .6. Monk. . . . . .11. Rogue. . . . . 16. Monk
2. Monk . . . . . .7. Monk. . . . . .12. Monk . . . . . 17. Monk
3. Monk . . . . . .8. Rogue . . . . .13. Rogue. . . . . 18. Monk
4. Monk . . . . . .9. Monk. . . . . .14. Monk . . . . . 19. Rogue
5. Rogue. . . . . 10. Monk. . . . . .15. Monk . . . . . 20. Rogue


Stats
. . . . . . . .32pt . . 34pt. . .36pt. . .Tome . . Level Up
. . . . . . . .---- . . ----. . .----. . .---- . . --------
Strength. . . . 14. . . .14 . . . 14 . . . +6. . . .4: WIS
Dexterity . . . 16. . . .16 . . . 16 . . . +6. . . .8: WIS
Constitution. . 12. . . .12 . . . 12 . . . +6. . . 12: WIS
Intelligence. . 10. . . .12 . . . 14 . . . +6. . . 16: WIS
Wisdom. . . . . 16. . . .16 . . . 16 . . . +6. . . 20: WIS
Charisma. . . . .8. . . . 8 . . . .8 . . . +6. . . 24: WIS
. . . . . . . . . . . . . . . . . . . . . . . . . .28: WIS

Skills
. . . . . R .M. M .M. R .M. M .R. M .M. R .M. R .M. M .M. M .M. R .R
. . . . . 1 .2. 3 .4. 5 .6. 7 .8. 9 10 11 12 13 14 15 16 17 18 19 20
. . . . .------------------------------------------------------------
Concent . 2 .3. 1 .1. 1 .1. 1 . . 2 .1. 1 .1. . .2. 1 .1. 1 .1. 1 .1. 23
Open Lo . 4 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 . . . . . 4 .1. 23
Spot. . . 4 . . 1 .1. 1 .1. 2 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 23
Jump. . . 4 . . 1 .1. 2 .1. 1 .1. . . . 3 .1. 1 .1. 1 .1. . .1. 1 .2. 23
Hide. . . 4 . . . . . 2 . . . .3. . . . . . . 4 . . 1 .2. 2 .2. 2 .1. 23
Move Si . 4 . . . . . 2 . . . .3. . . . . . . 4 . . 1 .2. 3 .2. 1 .1. 23
UMD . . . 4 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 1 .1. 23
Balance . 4 . . . . . . . . . .2. 1 .2. 4 .1. . . . . . . . . . 1 .4. 19
Search. . 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Tumble. . 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
. . . . .------------------------------------------------------------
. . . . .40 .7. 7 .7 11 .7. 8 12. 8 .8 12 .8 12 .8. 9 .9. 9 .9 13 13
. . . . .44 .7. 7 .7 11 .7. 8 12. 8 .8 12 .8 12 .8. 9 .9. 9 .9 13 13


Feats

.1. . . . : Power Attack
.1 Human. : Dodge
.2 Monk . : Stunning Fist
.3. . . . : Mobility
.3 Monk . : Two Weapon Fighting
.4 Monk . : Path of Inevitable Dominion
.6. . . . : Spring Attack
.9. . . . : Improved Two Weapon Fighting
.9 Monk . : Toughness
12. . . . : Improved Critical: Bludgeoning
15. . . . : Ten Thousand Stars
18. . . . : Grandmaster of Forms
21 Epic . : Improved Martial Arts
24 Epic . : Overwhelming Critical
26 Destiny: Perfect Two Weapon Fighting
27 Epic . : Vorpal Strikes
28 Destiny: Holy Strike


Enhancements (80 AP)

Human (13 AP)
  • Skills Boost, Wisdom
    1. Skill Focus: Nimble Fingers III, Improved Recovery
    2. Skill Focus: Awareness III
    3. Skill Mastery

Ninja Spy (44 AP)
  • Basic Ninja Training, Advanced Ninja Training, Shadow Veil
    1. Stealthy III, Sneak Attack Training, Faster Sneaking III
    2. Subtlety III, Sneak Attack Training, Fists of Iron, Agility III
    3. Sneak Attack Training, Sting of the Ninja, Wisdom
    4. Deadly Exploits III, Sneak Attack Training, No Mercy II, Wisdom

Shintao (15 AP)
  • Bastion of Purity
    1. Deft Strikes III
    2. Iron Skin III
    3. Wisdom

Assassin (8 AP)
  • Knife in the Darkness
    1. Sneak Attack Training, Stealthy III
    2. Sneak Attack Training


Destiny (24 AP)

Grandmaster of Flowers
  1. Lily Petal, Perfect Balance III, Dance of Flowers III, Wisdom
  2. Hail of Blows, Wisdom
  3. Orchid Blossom, Walking with Waves III, Wisdom
  4. Piercing Clarity II
  5. Drifting Lotus, Perfection of Soul III