Any tips on constructing cladograms?

I have to construct two parsimonious cladograms of 8 Salmonidae species and the 12 characters given. So far what I did was figuring the total scores of the characters and supposedly, the taxon with least scores is probably the most ancestral while taxon with most score is the most recent of the eight. Then I arranged the taxon with least scores from left to the most scores to the right side of the cladogram.

Problem is this is how far I've got. I know at some point I should compare the characters of each taxa with another and also I need to make two parsimonious cladograms, meaning I have to at least minimize the changes of these characters occurred through the cladogram.