Modeling Help (2D to 3D)

Well, I’m new with working with Blender and whatnot, and I’ve been trying to figure out how to work it. So, here’s what my OC looks like in 2D work, & . Though, I want to work in Blender and make my OC 3D, to where she look real, but I odn’t want her to move, so I just want her done in a cool pose like this, . I would love any help that is needed for projects like that, so if anyone can I’ll be oh so greatful.