Digi Pack Continuity

After putting the two images (that the audience decided I should use) together I felt that there was a lack of continuity to my digi pack. The front cover is washed out and dream like whereas the back image is bright and vibrant. I feel that these images don't match up very well and don't create a brand identity. The vast majority of digi packs I have looked at have this sense of continuity I am looking for. For instance, Coldplay - Viva La Diva, Duffy - Rockerferry and Damien Rice - O. So I have put the various images together to show the contrast or continuity between the different edits. I will upload the images and email them to a bunch of my target audience to ask their opinion.