While it's not anything huge, the color changing on the drones is a really cool detail.

As for more, the sharing of the sai in combat (1:04) was another small touch. It's moments that like that that can make fight scenes flow well and show special fighting style and personalities of those involved. The gory moment seemed excessive, and pretty brutal. But it did establish the threat of the drones in a quick manner, making the hero seem that much better when he started taking them out.

The set had a nice oriental feel to it, although the shallow focus kept it more to the background.

It was hard to hear, but the music just seemed like generic action music. If you're trying to establish a different culture like this, one easy one is to bring in unique music. In this case, probably something more oriental. It's an instant cue to the viewers that can help immerse them in the world that you're tried to create through the story and set.

It's a fun little action sequence, good job.