I have a virtual airline gbairlines.net but I'm needing a livery for it. I have one which i made but it's a bit plain. Could someone help me with a new livery please.

I don't know, I sort of like the more simple liveries. I checked out your GB page,  and your livery doesn't look bad! I would say though, that I wouldn't have your "GB Airlines" logo across your windows, as it has been done with American Airlines. Your texts are too small, so it doesn't look right. Perhaps lower it under the windows, or make the text larger if you want to keep it over the windows. What exactly are you looking for in a livery repaint?

I don't really know. Something that stands out.

I find your Euro-white pretty effective, however as stated above the re-positioning of the titles from over the windows would be a massive improvement. I'm not sure about the 'splat' on the tail and engines, what is it supposed to represent? Now Brittania are defunct could you use their regal tail (or something similar), that would stand out?

The splat to me looks abstract. Not bad, but perhaps it should be bigger and all over the tail as well as spilling over the rear ended of the fuselage. One big splat at the back! lol