Pretty good...
.... there needs to be a lot more Rurouni Kenshin/Samurai X animations on this site.
I like how you're doing this, with somewhat of an alternate retelling of the Bakumatsu period of the storyline but with the inclusion of in-series Japanese voices as well. Fairly good idea, but the fact of the matter is that several of the lines really didn't flow at all with the plot and were obviously only added because they were somewhat similar to the point you wanted to make. If you continue working on this, I suggest that either you drop the voice acting all together or keep it but just change the sub lines.
In spite of that, very well done. The animation's absolutely killer and you deserve major props for the work you put into this.