Thatís a better choice to work and improve your skills buddy.
1st thing Iíve noticed is that you are using Sony Pictures/Tri-Star/Columbia template to a New Line Cinema cover. Thatís not good if you pretend to adapt a retail style.
I donít know if I can post links to another sites, but as donít have any chance to upload nothing yet to the site, you could search here hxxp://www.generetic.org/ or you could always ask for the members if someone can upload the New Line Cinema template.
About the cover, I see you used the TCM front poster and the original title to the spine. Thatís good. About the back, there are some things you need to work more.
Why are you writing a synopsis only with capitals? Thatís bad and donít work with every movies. A long time ago Iíve made a cover for this movie. That was my 1st and the cover has nowÖ maybe 2 or 3 years, but itís an example so you can see how you can improve and work with a small synopsis and some stills.
The best thing you can do, if you are trying to make the cover look like retail is search for a few scanned covers and try do ďcopyĒ some ideas to your cover. Iím not telling you to copy all the things, but grab some ideas from a few covers.
Also search for some blending tutorials and try to blend the back stills. The final result will be better.
Practice custom Blu-Ray covers, DVD covers and other stuff designs are displayed solely for the purpose of demonstrating design skills and are no way intended to infringe upon the copyrights of the owners of the respective images with which they were designed.
Thank you for reading.