Thank you for your feedback, but you misunderstood the purpose of this plugin, which is: to add a watermark underneath the original image - a 9GAG clone, if you will.
By adding the watermark underneath the original image, you can hide the watermark with CSS or JS, so it doesn't bother people. I mean.. come on, who really wants to see your watermark ? And if someone copies the link to the image and sends it to their friends or something, bam! they see the watermark.
So you see why I chose to make the plugin this way ?
Anyway... the internet is full of the same pics (some with watermarks directly on the image, some underneath, some with no watermark at all), and if someone really wants a pic, well... they can find it.
And anyway, there are lots of plugins designed they way you want...