quality loss

[gobbolina]

I'm not sure if this is the right place to ask.

I've made four banners for a board RPG which I wanted to animate and turn into one single banner. But as soon as I save it as a .gif it looses quality.


At this pic you can see it best.

This is the original:



And here's what it looks like as a .gif:



I have no idea where the problem lies. I hope you can help me.