Very well done! This was just on the edge of feeling like not-a-jam-game, were it not for some bugs(?) in the controls preventing me from, for example, pushing the statues from the bottom or top. I always had to start pushing them from either the left or right side, and THEN I could start sliding them up or down as needed. Easy enough to work around, anyway. A few times I was turned to stone when I didn't think I should have been, but I just summed that up to me not paying close enough attention.
The art direction is just about perfect, though a few elements didn't stand out enough (rats) and the Basilisk itself felt just slightly off in color (too much saturation, maybe? I'm not an artist :P ). The BGM had me immediately go "Oh, I like that!", but it did start to get repetitive after 10 minutes or so. Bound to happen with a single track, though.
To be fair, I'm really reaching for critique here, overall this is one of the best entries I've played. A solid puzzle game slice, and a fantastic game jam effort. Congratulations, you made a great game!