Yeah, I suppose that makes sense.
Oh, just something else I noticed. Check your screenshot of the two auto tiles. The rocks drop shadow is at the bottom right, this suggests a different light souce to the sprites, which have their shadow directly under them.
Edit:
Hey GR, could you try something for me? I have planned to make a mob in the game a rolling cube. But I cant seem to get the roll right. Do you reckon to you mock up a 20 second template on how a cube would look rolling as a character set? litterally just needs outlines. Do you have any ideas?