My advice: read older threads.

http://www.mangatutorials.com/forum/...tart.-Any-help

http://www.mangatutorials.com/forum/...-a-good-writer

http://www.mangatutorials.com/forum/...ect-Discussion

http://www.mangatutorials.com/forum/...is-NOT-cliche.

http://www.mangatutorials.com/forum/...590-Your-enemy

http://www.mangatutorials.com/forum/...-What-it-takes

We have already discussed plenty of problems about comic productions in those threads, so take a look at those and search for others threads to look at.