A possible homage, given that Mr von Schmidt's album was featured on the cover of Mr Dylan's Bringing It All Back Home: The Folk Blues of Eric Von Schmidt Bob Dylan, Nashville Skyline That said, i swear i saw one time another album cover, a country album from earlier, that had the performer posed similarly. Damned if i can find it now. Also, perhaps tangentially, it's possible that the cover of the Rolling Stones Get Yer Ya Ya's Out was in part a nod to bob's "Jewels and binoculars hang from the head of the mule". I'll let those more knowledgeable advise.
I picked it up for 20 cents one day just because I'm a Pumpkins fan. Also I was surprised to come across a Brazilian CD here.
I agree, not a homage... but considering they were just months apart, I'm not so sure about not being a knock-off.