Cool game! No need to be sorry about the length.
I like the atmosphere and the partner mechanic, both remind of Ico.
Camera controls are tight. The attack is a little strange, how it seems to sweep downwards without much range (though there isn't enough combat so far for that to actually get annoying).
I love the little details in the level design, like the bent bars.
The interior sections can be difficult to navigate due to the untextured walls and flat ambient light.
It would be good have some sort of voice or feedback when you press control to make your partner stay/follow. At one point when I was separated from her, I pressed a bunch of keys to see if they did anything, and ended up with her lost inside a building.
Overall, really fun and promising!