If you are unable to use this captcha for any reason, please contact us by email at support@dreamwidth.org
Other options:
no subject
http://ipiccy.com/help/how-to-add-logo-and-text
The sky and the logo could be any images, and you could have more than two images. Then you arrange them how you like, and do a few things, but at the end, you HAVE to merge them. So you loose the ability to edit each layer separately.
Hope this helps!