I inserted a jpg of our logo, and used the fill-in boxes to add title and description as requested. Result looks silly: it's obviously a logo, so no need to label as such. How do I remove the label?
If you go back to the "Write a Release" page and click on the image, you can then delete your entries for title and description. Then just click on the "Save" button to the right, and the image should be presented without these entries.