It matters. I its just a model search probably no to both. But i they're looking for a model for bodybuilding ads, then maybe. Talk to the promoter and see what they want from you.
You need a solid and equal looking tan. Use a concealer for those racoon eyes you get from tanning beds. And don't try using those stupid tanning paints. They suck. Use Neutrogena's spray tanning oil. It doesn't smell as bad and it dries with 10 minutes so you can get dressed and not have to stand nude while you wait for the other brands to dry. Be sure to smile often. And try to make the smile real; think of something funny, like a huge terd falling from your posing trunks. GOOD LUCK!