Forming letters with sprang

I worked some simple doubleweave pickup.  And you can see I've left some of the warp in the center section unwoven, sitting on top of the cloth.

Then I worked a sprang braid using the unwoven warp.

It's supposed to look like two Ds (my initials).  I don't think I like the shape of the inner curve - the part I did with the pickup.  I think it should start further out from the vertical, and end more gradually, not so pointy.

I think I put enough warp on to try again.  What do you think?