Adding the optional U3 at the beginning of R3 might soften the edge of Two’s base.
Two
I’m offering a few choices on this one (heh, heh).
The first One agrees with the rest of the numbers (you must include the optional stitches), but you might prefer the look of a different One.
One (number set) shown with optional stitches
This works as an O or a 0 (zero).
