A heading is needed for the web-site [url removed, login to view] – bright, colourful (alternative – not very motley, but stylish) picture with the name of the site. The name might be drawn, might be written with some interesting type.
As I see it – palms, sea, sun, parrots e.t.c – everything in an animation style, for example like here [url removed, login to view]
How to define the style more accurately – I don't know.
If it is possible to create some laconic nice logo – it will be great, I'll pay extra for this. If you'll have a desire to draw the icons for the menu (you can see them after the registration) and/or try to work out in the same style the site menu – it will be also great.
It is possible to play up the name of the site in the picture of heading – like on the left there are palms and sea, and on the right there is ice (frozen water) and firtrees (kind of "Russian Edition"). But it is just one of the variants.
Maybe (it is not obligatory) it can be not a panoramic view, but for example it can look like you are sliding apart the jungles and there are lianas on the glade or something else. The name can be written not in the same way (concerning the size). It could be written in two lines (2 words in each line), for example.
Width – 1000 pix, hight – 90-150 pix – here you have a freedom for creativity.