@awadissk--Great point about lossless format!  I didn't know until THIS WEEK, every time you open a JPG and save it, YOU LOOSE INFORMATION!!  BEWARE!!

Another thing to keep in mind is content of the THUMBNAIL!  Look at your picture---is there a facinating detail? Some part that captures the spirit of it moreso than any other part?  Remember you can do a whole different pic to use as a thumbnail!

Just think of what draws you into opening other pictures from their thumbnails and try to do something similiar with your own.

REMEMBER!  The thumbnail is a COMMERCIAL an ADVERTISMENT for your main program--the render you are posting.  Find the drama, humor, pathos or whatever in your pic and distill it to one little part.

One more thing--be creative and HAVE fun!  Some of the thumbs are top drawer pieces of work--do the same, and your hits will go up!  ^__^ V,,

I cannot save the world. Only my little piece of it. If we all act together, we can save the world.--Nelson Mandela
An  inconsistent hobgoblin is the fool of little minds
Taking "Just do it" to a whole new level!