My main problem with the shades was not understanding that, but moreso the execution of it. A lot of times, when you have distracted them, they would still block the path
In the 3rd (2nd non-tutorial level) level by the big elevator, when you would run to the right, to get to the distraction and the shade would follow you from the left for example, you were actually stuck as it was then blocking you. I eventually got past it by going left instead and going the elevator there up fast enough, where the shade then got stuck on it and then got pushed into the ground by the elevator and stuck there, no distraction needed.
In the 2nd (1st non-tutorial level) it was a bit tricky to jump over the shade at the end, as the corridor was so small.
It might just be a skill issue though
I did see the ending now too and I think it is pretty awesome actually haha. I still liked the game eitherway and as a first game you did a great job!