A very warm Welcome to BPN.
to post the image click on zoom button on flickr and click All sizes. get the image url from there and post.
that will show the exact image here.
In anticipation of you figuring out the posting details, I went ahead and visited the flickr image. Fantastic image all-around! Great perch, details on the roller, lighting, and background. The scorpion takes it over the top, and the curve formed by its tail is perfect. I think it could take a little more sharpening on the eye. I look forward to seeing more of your images!