You should be grateful that there is someone trying to help you.
No, this is not enough information.
She asks you what they are wearing, for a good reason. You don't even tell us what type of setting you have! Sure, most games are Fantasy RPGs, but there are also a lot of other options. And even if it's Fantasy, she just can't randomly choose what they shall wear, I mean, the image should fit your game! How old are they? What kinds of persons are they? What weapons do they use?
There is so much more needed - what Ruby said-, and to be honest, a title screen is something you can add when your game is done. Maybe there are changes during the development process you can't know about yet - like maybe there's another main character or something in the design of the people in the picture changes.
So you want somebody to spend hours of drawing something for you (for free, indeed) when you are even too lazy take your fifteen minutes to write a proper description?