Select the appropriate question tag for the given sentence:

It looks perfect here.

doesn't it?

The correct answer is Option (4) - doesn't it?

1. Verb and Tense:
   The sentence "It looks perfect here" is in the simple present tense with the main verb "looks."

2. Forming the Tag:
   Since there's no auxiliary verb present, we use "does" as the auxiliary in the tag question.

3. Negative Form for an Affirmative Statement:
   For an affirmative sentence, the tag should be negative. Hence, "does" becomes "doesn't."

4. Subject Agreement:
   The subject "it" is repeated in the tag.

Thus, the full sentence becomes: "It looks perfect here, doesn't it?"