Let's start with the difference between criticism and a critique.
Criticism is negative comments - identifying faults or bad points. A critique is simply an evaluation - it can comment on the good points and/or the bad points.
My project idea received a lot of criticism from my colleagues - they said it would never work.
In his critique of the book, Johnson praises the excellent character development, but says the plot moves too slowly.
A critic is a person. There are two types of people who are critics:
A professional critic is someone who specializes in evaluating art, films, or literature: an art critic, a movie critic, etc. This type of critic makes critiques
A critic in general is someone who tends to find negative things and point out faults. This type of critic likes to criticize (meaning to make criticism -negative comments). The president's critics say he is not devoting enough funds to national security.
The word critical also has two meanings. When describing a person, it means the person is finding fault:
My mother was always very critical of my work - she said I would never be a good writer.
When describing a thing or situation, critical means "essential" or "extremely important":
The baseball player made a mistake during a critical moment in the game, causing his team to lose.
Access to clean water is critical to the health of the population.
This car is in the second position is the Top 10 List of Bullet Resistant Cars. This is a fully armed luxury SUV made by Conquest Vehicles. Its designer William Maizlin has converted a military vehicle to a luxury vehicle. This vehicle is made of ballistic hardened steel. Its 20inch custom designed rim is made of a solid piece of 6061 aluminum.