Capek...not bad for a first time. Everything looks too huge. Try using a smaller font and add as much of the specs that you can so you know exactly what the disc has to offer. Also, the columbia logo on the spine is stretched and the font you chose for the title on the front does not look good, try matching it with the spine font.
With that said..here's my take on Pitch Black. I tried matching the teaser poster. Hell anything is better than Vin Diesel's huge noggin.