That nip slip and the other xrayed pictures are from long before DLive days, those are from late 2018 - early 2019ish and they've been circulated around so many times, they're on like every leak site. I can't believe that guy is claiming he's the first person to ever post them.
Velvet does do custom videos on Patreon if you sub VIP or higher, but they're not any different than her normal content. She's also incredibly lazy and "forgets" to do it unless you hound her on it. She likes to wait until the end of the month to send them to try to force you to resub.
She literally never sends snaps even though she's had "daily snaps" as a Patreon tier reward for the past 6 years.
She's lost multiple paypigs who have subbed to her $1500 tier AND donated thousands on stream for months at a time. If she posted stuff worth leaking it would have been leaked by now, especially nudes.
Also her Patreon and OF content is the exact same, the only difference is you pay more (I'm pretty sure) on OF but you get it all up front, and you pay less on Patreon but it takes multiple months to get the sets she posts.