The first publicised sleeve for Songs From The Tainted Cherry Tree featured Vickers in an oversize bow dress with a purple splattered-paint banner and her name in Jamie Reid-style newspaper typeface.
After initial complaints, the cover was tweaked to alter the colour of the banner to cherry red, but fans on her official site have continued to complain about the lack of album name and use of the previously published photograph.
Raffles47 said: "The cover is simply awful - it desperately needs to be changed and quickly!!! Diana deserves better than this - it looks like the dog has had hold of it!"
Forum user Foxello suggested: "Seems that the best thing to do will be try and get the message to Diana herself. RCA won't listen to us, so we need to hope Diana will.
"I can't for one minute believe someone of her flair and passion would permit something as bland and as colourless as this to be the cover for HER album."
However, another web user SarahNugentxx countered: "I actually really like it."
> Click here to watch our recent interview with Diana