noun
1
BAD : I decided to change my impression and had all my hair cut short.
GOOD : I decided to change my image and had all my hair cut short.
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impression = an opinion or feeling that you have about someone or something, especially after just a short time: 'My impression is that she would make an excellent teacher.' 'He gives the impression of being someone you can trust.'
image = the general picture that you want people to have in their minds when they think of you or your company, organization etc: 'After all the bad publicity, the company needs to improve its image.'
2
BAD : My first impression about Californians was very positive.
GOOD : My first impression of Californians was very positive.
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impression of sb/sth : 'They went back to Japan with very different impressions of what England was like.'
3
BAD : He wanted to make a good impression to his girlfriend.
GOOD : He wanted to make a good impression on his girlfriend.
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make an impression on sb : 'His first priority was to make a favourable impression on the prison warden.'