I don’t know how useful this might be, expecially because you might know of it already, but a good part of Chofi’s art can be found here:

SFW:

http://mspabooru.com/index.php?page=post&s=list&tags=my-friend-the-frog

NSFW:

http://rule34stuck.booru.org/index.php?page=post&s=list&tags=my-friend-the-frog

im not planning to repost anything, but ill leave these links up!