Something is shoddy if someone has done a bad job building or making it.
Something is short if the highest part of it is much lower than the top of similar things. The woman in the picture is much shorter than the man in the picture. The opposite of short is tall.
Something is shredded if it has been cut into small pieces. Usually the pieces are strips that are longer than they are wide. People shred vegetables to make salads, and they shred paper so that noone can read what was written on it.
The person who took the picture does not have a very good shredder, as some of his paper shreddings are very readable.
You are shy if you are feeling nervous or uncomfortable when you are with other people. A shy person may want to stay quiet or not speak first. People are often shy when they are new to a place, or when meeting strangers.
