The tartan she is wearing is the Ancient colouring of the Davidson clan, and nothing says Scottish more than tartan.
The dress she is wearing is a medieval style gown, simple and plain but finishes her off perfectly. The tartan matches so there is no break in the actual check so it is flawless all the way round, the tartan itself is not wool as it stretches and doesn't hold the shape of the doll very well so a poly viscose blend was used.
If you would like a doll made in your family tartan please enquire first as it isn't easy or cheap to obtain certain ones and may incur an extra charge. However I do shop around and get the best price to avoid this, just basically putting it out there in case it ever happens.