The first one is a mildly fantastic family friendly scenario with superficial events, classic stereotypes and extremely predictable outcomes.
The second one is an ordinary slice of life story about allergy.
The last one which seems at first the most original of the three was obviously inspired by John Carpenter's version of the Invisible Man and ends up in an ordinary fashion instead of bending to the mystical symbolism or spiritual side (which would have been more interesting to my opinion).
Therefore, everything looks like very superficial and do not offer much aside from the beauty of the drawing, lighting and animation.
When compared to other Japanese short movies such as "Memories" and "Neo Tokyo - Manie Manie", or simply recent anime series such as "Mob Psycho 100" or "Mushishi" which features unusual scenario, strange and disturbing symbolism, ambivalent emotion, and unpredictable events (and beautiful animation as well) you can realize the huge difference in terms of narrative and reflective qualities.
Therefore, unless you are interested solely in animation technical details, I do not recommend watching these very ordinary and somewhat trivial short movies.
