What will a tattoo on a babby look like later after the babby grows up into adult?

My child will get a dragon tattoo, it is the tradition in my family. However I am wondering what it will look like when he gets bigger. Will it become big dragon, or be all spread out?

This is posted in Babby Names because his name is Merrick Powersword.
Update: I was 17 and fully grown when I got mine, but I wish I had been younger.
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