Christoph Waltzs as character "Walter Keane" custom-made (by Anto) white tuxedo shirt with ruffles & black silk bowtie from Big Eyes.
Shirt is tagged with Christoph Waltzs initials "CW" as well as "June 2013".
Including production used costume tag with details about change and scene numbers.
The ruffle (formation, size and pattern of the individual segments) allows a screen-match determination.