Cartoon / Character art for quality t-shirt line

Hi, I need some drawings featuring a human engaged in an activity for some high-quality t-shirts. Our main slogan is similar to ‘think positive’ and also to ‘just do it’ and will appear with the drawing. The character should be upbeat, friendly, warm, fairly minimalist, modern, cool - and not too heroic, fantasy or comic-bookish. Preferred shirt colors will be tan, ‘moss’ (dark khaki), brick, bay blue, white, mustard. The art should have rapid eye appeal. I think the use of dark gray outlines, for example, for the clothes, filled in with single colors looks nice. We may want more than a single character – but two or three with same look (for ex., male/female, light skin / brown skin). Before you respond, PLEASE visit the ‘life is good’ corporate site and browse the men’s tee shirt art. I would like to see a sketch of any of the following: 1- a person lifting weights, possibly with one hand / one finger, with a smile 2- hiker quickly scaling a mountain, possibly running up a mountainside 3- Jordan-like basketball person flying through the air 4- golfer with body gesture willing the ball in the hole What is price for finished art? Thank you, Vincent