"Redonditosdericota", probably shortened to "RDR", also went by "RDR3d" and earlier "Max Cady". A search using those aliases might produce some results. Be advised, most of this artist's images are deemed unsuitable for this platform so very few, if any, will be found here.
There is a collection of this artist's work on FS, but at present it's in an area you don't have access to.
If other sources aren't found, you could raise your Membership level to *VIP* to see them. Here's how:
https://saradas.org/index.php?topic=88568.msg392607#msg392607Hope this helps.