Complex logo for myself (as watermark and/or tattoo)

Information for the business: private / self marketing
Industry: Art and Design
Type of logo: Abstract mark, Emblem, Character
Brand name/slogan in logo: NightDragon
Ideas for the visual style: See Text
Things to avoid: usage of existing cliparts
Preferred colors: all kind of grey, black, white --> mostly dark
Where the design will be used: web, watermark, tattoo?
Extra notes: Used as a branding logo / distinctive mark. It will be used on a website, or T-Shirt but later also as watermark in pictures. It's all about the Nickname "NightDragon" and so the logo should epitomize it.
According my imagine it would look like a round talisman where a mystic dragon sits in the middle and it's big wings outspread out of the logo. It could be a frontal view of the dragon looking into ones eyes or a side view of it - where just one big wing and the powerful head is seen. Below should be the text "NightDragon". It can stay simple in the bottom of the circle or held by the Dragons claws.
The font should look similar as often used in middle age games / graphics. The dragon should be in the style of a european dragon so - similar like http://eofdreams.com/data_images/dreams/dragon/dragon-02.jpg (in opposite to the asian dragons).
here you can find something which inspired my imagination: http://static2.sdith-images.com/media/catalog/product/cache/7/thumbnail/464x464/9df78eab33525d08d6e5fb8d27136e95/i/m/image_16353_1_195315_1_38903_1_48_1_473070.jpg
The colors to be used: dark, mystic... If you look up on google for "Castlevania Lords of the shadows 2", you'll get a pretty good idea of what i try to explain about the style, color, etc...
I'm currently not sure if the dragon should look clammed down or angry/aggressive... I guess when I get the first concepts i may be able to decide. I guess you already see it's playful...

Feel free to contact me any time for more information or if you are unsure. For many things I can send a link to a existing graphic on the net which has the one or another attributes I'm talking about.