Spirit-Materialization- Your zanpakuto spirit is supposed to be invisible to everyone but you unless that machine is used (Ichigo Bankai Training Arc) to bring it into the physical world. I'm denying this ability on the basis that it is illogical.
Reiatsu Burst- Too overpowered. You could simply blow away anyone that was about to land a hit on you. And with your character's speed levels, it would be nigh impossible in the first place.
After Image- I would say more like a 70 in Shunpo Speed. However, your after image can only remain behind for a split second. The reason for this is that if you want it to stay longer, that is a Kido-related ability. Kido Intelligence affects the ability to perform moves like this as well. Look at some of the other techniques on site as reference.
Spike Blades- You misunderstood me. Only techniques that do not have to do with Shikai and Bankai go here. If you want to create more afterward your profile is approved and you begin rping, THEN you could make more on this board.
Advanced spiritual pressure detection- Your character does not seem to fit this move it all. How does a character with a 0 in Kido intelligence (as I stated before Kido Intelligence is not just...well Kido, it also handles all other Shinigami spiritual arts including detecting and sensing spiritual pressure, leaving after-images, etc.) have such a powerful detecting skill? I'm denying this one on the basis that your character doesn't have the right skill set to even perform this move. It also is over-powered and has no cost to speak of.
In sum:
Spirit Materialization- Denied
Reiatsu Burst- Denied
After Image- Approved upon proper modification
Spike Blades- move to the Bankai release form section of the profile format
Advanced Spiritual Detection- Denied