Green Lantern/Green Arrow from DC's 1976 Calendar.
Superman from the History of the DC Universe.
Aquaman from DC's 1976 Calendar.
and Wonder Woman from a Super-Friends print set.
Tarzan from one of the Tarzan Paperback book series years ago.
The uncanny X-Men from a proposed portfolio in the late 70's.
The Vision from a counterfeit Neal Adams portfolio,
according to the Neal Adams web-site.
Not by Neal, but it was my first thought.......
A collection of Neals most famous covers top above and below.
Justice League Of America #79 Front Cover Original Hand Colored Art or color guide
World's Finest Comics #199
Original Approval Cover
(Approved by DC in the late '60's.)
SUPERMAN!
The Sketch book and a special Green Arrow on ebay 8/4/00
DC 1977 Calendar.
A very rare DC comics signed and numbered print by Neal.
The Original.
The Origins
and a rare JLA picture printed on canvas, the same image from the 1978 DC comics calendar I believe.
an unusual collectible blanket or rug that looks to be by Neal Adams, this one was up for auction on ebay a while back, I don't know much else about it.