I enjoyed the game quite a bit.
The first tile you're placed on should allow you to immediately move, otherwise the game is confusing from the start.
I had trouble seeing the 'walls' and I think you could benefit from an art style that maybe shows the walls 'deepening' into an abyss, or some kind of 'raised' asset to help really show what is a wall and what is not a wall.
For some reason I figured reaching the edge of the maze would let me reach the other side if there was an 'opening' on the edge wall. It didn't work in that way, so that fell non-intuitive.