Fantastic pose.
Excellent composition.
If the colours look slightly less punchy when uploaded to the web, then check to make sure you're saving your photos under the sRGB colour space and not Adobe RGB.
If you use Photoshop then save using the "Save for Web" option and make sure Convert to sRGB box is checked.

Joe

Great shot of this Barn Owl.
Brilliant composition.
Nice and crisp.
I did a mod as well!

Cheers,
Joe

Very unusually coloured Grasshopper!
You've captured the colours well with good vibrancy, though there is a slight blue colour cast. However this can easily be fixed in any half-decent editing software.
I think next time you encounter a bug like this, you should get down lower and get parallel to the subject as this gives a clearer and more pleasing view of the subject.
A great diagonal composition that always works well.
And finally the exposure is great too!

I've uploaded a modification too.

All the best!
Joe