@Ragnarok: Yes, Terragen

I got the "lens flare" by tinkering around with the atmosphere settings and increading the corona to 25 I believe.
@Ed: Unfortunately, Terragen has a maximum rendering resolution of 1280x960 unless you register

But stretching 1280x960 pics to 1600x1200 is a lot less visible as stretching 640x480 pics to 1600x1200, which is 6.25 times as large, compared to just over 1.5 times for the 1280x960.
@Dogscoff: I guess I simply didn't think about it. I always use imageshack on another forum I frequent, so it felt kinda normal to use it now. I have to admit I haven't been to SE.net in quite some time, I'll check it out. And yes, imageshack is indeed apparently funded solely by the omnipresent advertising. There's two large ads on the main upload screen , and three on the screen you get after uploading. not to mention (since you already did

) the popups when you go to a hosted pic.