The first one can be seen either way. For me, I saw a vase first. In all of the pictures, the black drawing is considered the positive space and the white background behind it is considered to be the negative space. If you look at the vase picture again and imagine the background to be the black portion, you see two faces.
Hope this helps! :)
Answer:
To this day you can still find leftovers or inspiration of the Romans architecture in buildings like the concert building in Amsterdam and many others all over Europe.
Answer:
A realistic interpretation of art is necessary as people have always used art and the images associated with it for communicative purposes as well. Some images are used for decorative purposes and some are used for communicative purpose.