You know I'm on board with this, but for detail's sake:

Naesala is a non-human shapeshifter. Within his canon, humans and laguz evolved from a single species who-knows-how-long ago, so if Leo's powers can tell to what degree he's removed from being human that could be an interesting tidbit.

As far as any eye powers go, hell yes. Use 'em all. Ask me beforehand if it seems like something Leo might do would impact an actual plot-thing Naesala's involved in, but I'm still a big 'yes' in general.