Do you tip your tatoo guy/girl?

Reesa🌺
So I got this tatoo in Brooklyn that wasn't anything close to what i wanted and payed $150 for it and gave a $30 tip.
Months late when i get home I have the tatoo fixed and some things added, I love it, but it's not finished, cost me $233. I didn't tip, was that messed up? I want to go back to her so she can keep adding but now I feel stupid if she was expecting a tip ontop of what I payed her. She said $150 after an hour, I went into about 1 hr and a half. 
Thoughts?

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