The official Dragon Ball website’s fifty-fourth entry in “The Nearly Complete Works of Akira Toriyama” — an on-going series highlighting rare and important pieces of the author’s work over the years — is the author’s character designs for #17 and #18 in Dragon Ball Super‘s “Universe Survival arc” and its Tournament of Power.
Apart from the jeans, the “MIR” shirt and “RANGER” armband are carry-overs from #17’s park ranger uniform. The website’s write-up notes how this was the first time Toriyama had drawn #17 since the 24th kanzenban‘s cover artwork in 2003.
Following a teaser fold-out poster with the finalized anime designs in the February 2017 issue of Shueisha’s V-Jump magazine, Toriyama’s designs for #17 and #18 were originally unveiled the following month in the March 2017 issue:
The selection of #17’s design for the daily entry was part of the website’s larger April Fool’s joke, which re-branded the entire site as the “Android 17 Official Site” in light of his surviving to the end of the Tournament of Power: