Thoughts on adding Irezumi to my other arm?

Hi! I started this tattoo sleeve because I really liked the story of the koi swimming up stream and representing preservance, and then eventually turning into a dragon. I ended up adding some other subject matter to my arm with the koi instead of staying with full koi / Japanese themed. (Also because I was worried at the time that irezumi would not look good on me)

So I am now wondering what you all think about the idea of adding a black and grey(small aounts of red/green) Japanese style dragon + cherry blossom sleeve on my other arm?

/ will the themes be crazy ? I know nothing HAS to match, but I will say I was kind of hoping for a style that all looks good together

Also FWIW - I am going to finish this 3/4 sleeve with something soon. Thinking about either another koi, or flowers/waves, or butterfly & bee (float like a butterfly, sting like a bee -Muhammad Ali)