I would check your paths again, i found the url : http://www.woodcarvingillustrated.com/gallery/data//
<-(notice the double slash)
Also clear out your uploads directory and subdirectories of any rogue images and re-encode a jpeg again from photoshop, maybe try exporting the .tif as a .BMP then re-importing that file to then save as a jpeg...
If you have Image-Magick installed on your server maybe this could resolved those issues, please have a look at out guide here
for more info on ways to resolve this, cheers