15th C Florentine outfit

I have plans for a dress from around 1470-80 Florence, based on the paintings by Domenico Ghirlandaio, particularly the Tornabuoni ones
(links to add)

I have some dark brownish-pink woollen gabardine to use for the gown layer, and some pale brown linen for lining. For the overdress I have a slightly pinky cream brocade with diamonds about 3-4 cm in size, with fleur-de-lis in them, and pink (matching the wool) spots in each corner.