and you dont have to take my advice...Im just being me.
On the Samurai logo...
One... misspelled Samurai...add the "a"
Two... you might toy with making the red circle "the sun" a little smaller, more in keeping with the Japanese flag
Three... perhaps something like the silhouette of a katana, or two crossed in the foreground of the sun...to better represent the Samurai...
On the Sharks logo... Perhaps bring the text away from the borders towards the center just a tad, and give the text a light/white border to "pop" it from the background....
Other than that, I think you're really on to something there.