In DA:O you got to see all the physical customizations (beard styles for Dwarves, etc...) but the meaning of each vallaslin was never revealed. We know they all HAVE meanings and the Dalish warden and inquisitor would know them as would any Dalish you meet, but the player is for whatever reason kept in the dark.
I for one would really like to know if the vallaslin I've put on my Inquisitor at random really represents the ancient elven god of genital warts. 
I'm starting to wonder if Bioware even knows what the tattoos mean, I could understand them just making tattoos that look good and not worrying about what they represent.
And I understand why you want to see the tattoos and know what they mean, but in the grand scheme of things it's still very minor, and if they reveal tattoos I feel they should reveal something for all the other races as well.