I don't use google - I wouldn't know. But when I do a search using BING - I get my IK images. I've not figure out how to change that - yet. Maybe it's why I've sold several there and only two here - about two years ago.
Yes they do. I just did a google search of you. It showed all where you posted your works.
Just be specific on what you want to search and it would show.
Whatever you post in the internet it would be there forever.