Anyone good with adobe illustrator?

Hello I was wondering if anyone was good with illustrator? Enough to where they could tell me a few things to help me to transform a drawing I did into illustrator. I am trying to submit a design to a t-shirt company and they require I draw the design in illustrator so it can be vectored. Anyone care to help? Here is the design maybe it can give you an idea of what I need to learn in order to create it.