let me know what you think

Screenshot's nice, but it lacks quality.

i know im having problems with that...

Try saving it as .png instead of .jpeg/.jpg.

Try saving it as .jpg instead of just renaming it to .jpg :

Try adding somewhere on the picture "May or may not be .jpg"

Alrighty then, time for some constructive critiscism.

First of all, not bad for your first. So how can you improve? Here's how:
1. Don't be afraid to render at higher resolutions with anti-aliasing. It may take longer, but it will look much better.
2. If saving it as a jpg, don't do so from Paint! Get Photoshop, or if you're skint, GIMP which is just as good, and save it as a high quality jpg with floating point compression method. That way, it shouldn't be too big and picture quality is preserved.
3. When taking the screenshot, take your time to review the replay a frame at a time, examining it from every angle until you find the right angle and an impressive, clear view of the 'damage'.
4. Plus, don't be afraid to try out the different .inc files provided in the raytrace folder, or if you feel adventorous, mix the code around from other .inc files into one (be sure to make a backup IF you are modifying one) and see what it comes up with.

Take into account all these points, and you will get much better. Plus, doing post-work on your renders can help with the overall look and quality. Hope I helped ;)