A cottage and a face.

A different figure.

A room after a crazy man's paint job.

All lines are the same lenght.

All three men are the same height.

Are the circles aligned?

Are the stripes on the blouse are vertical? :)

Body paint.

Both arch are the same.

Both oranges are the same size.

Both persons are equal height.

Both shapes are equal size.

Can you spot the dog?

Candle seems to be in the wrong place.

Castle wall must be mixed up.

Combined pieces? Or ...

Confusing stairs.

Cubic shaped circle.

Did you notice the faces among the flowers?

Do you look through the cylinder from the right or from the left?