A mate of mine had a devil from a heavy metal album cover done when he was about 17. He has regretted it ever since and is now having something done over the top.
There are lots of people who regret their tattoos because they didn't think of the implications of it being for life, not just for xmas. I did think long and hard, I originally wanted an elf smoking a hookah sat on a mushroom. I suspect that I would be sorry about that now. I got a "cheesy" dolphin because I like dolphins and what they symbolise and still love and look after my tattoo. I want a butterfly on my foot but although my pain tolerance is pretty decent, I am still too much of a pussy to do it.
tbh I'd be more impressed/interested with the elf, so long as it was tastefully done and so on, dolphins just seem a bit 'off the peg' unless there's a real twist in the design somewhere.