TFF main alien artwork was not to my taste - too cartoony.
However, TFF concept pencil sketches inside the gatefold were sublime. Remember the Avatar one and the flying alien?
Wish they had gone for that sort of ethereal feel rather than the 'straight to video sci fi movie starring TV actors that scored 3 on IMDB' feel that they chose.
I like the TFF cover artwork, but the comic book approach used for the singles (El Dorado, The Final Frontier, Coming Home) was better.