Why do I have a sense of Deja vu? Ichigo has long hair and an arm that is stolen from Allen Walker. Even Isshin has a beard. Aizen being god-like mocking at Ichigo. This is something from Dragonball Z when Freeza battle out with Goku. Ichigo immediately grab Aizen's head and carry him to a deserted land.
Aizen could not feel Ichigo's reitasu which is probably a good thing as it could mean Ichigo could have attained a new level.
Let's see how the battle goes..