What is the difference between 'enhanced' and 'enlarged'?

[Jo]

Test No. incompl/advan-22 "Quality Control", question 9

The whole look of the shop front is ......... by the introduction of bright colours.

(a) engrossed
(b) enlarged
(c) enveloped
(d) enhanced

Test No. incompl/advan-22 "Quality Control", answer 9

The whole look of the shop front is enhanced by the introduction of bright colours.

Correct answer: (d) enhanced
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what does "enhanced" mean?
why not "enlarged? Thanks

[Alan]

This means made more attractive. You would not use enlarged because we are talking about looks and not size.
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English as a Second Language
You can read my ESL story Passive Voice

[Rich7]

Could you please state some differences between big and large?
When to use one or the other?

Thanks...