Flickr images are rotated wrongly
On flickr the portrait image is rotated upside down, but in the slider it appears on it's side.
Your image is probably only rotated by it's exif data, but that is not supported by browsers, so the browser doesn't rotate that image of yours, only flickr does.
Use the url_l variable instead of the image variable, so here at step 16. which is the large version of your image. The url_l and other url_X variables besides the url_o aren't returning the original image, but the image created by flickr, and flickr rotates this images in a way, that browsers are showing them correctly too.