Sure!

Some funnels(especially the ones on the end (the biggest ones) aren't symmetrical to the Y-axis so basically the line in the middle.)

When it comes to the lower layer : comparatively to the box in the middle each upper layer to the left and to the right and up and down should have a smaller and tilted surface. The lower layer should obey to the same principle. For Example the box next to the central one on the right has a correct perspective on the upper layer cause it starts next to it so it has the same length on the edges and then gets thinner with distance cause of the rotation(objectively it has the same size but because of the perspective(the rotation)it look smaller and you draw it as if it was smaller)), but you drew the lower layer as if it wasn't rotated at all - as you look further to the right it also should get thinner, but instead it keeps the same length. Do you get it, or was this explenation to convoluted?