I am pretty underwhelmed by the imagery chosen for the novelties. There is a lot of imagery to choose from when it comes to Irezumi and American traditional tattooing and I don't think this set pays proper homage to it. There are plenty of other subjects being left out. For Japanese traditional, things like snakes, dragons, flowers, koi, Japanese mythical beings, and heroes from Japanese folklore are some of the most popular subject matters. NONE of that is being represented here. I also see no good representation of American traditional tattooing in the design of the keyset. The lady face desk mat is the only obvious thing from my eyes that relates to American traditional. Some things that could be presented in the novelties that represent American traditional: ornate daggers, anchors, roses, horseshoes, stars, hearts, etc.
American and Japanese traditional tattooing are known for their boldness and heavy utilization of black and greys. Black and grey are used to make the colors that are used stand out. How do red legends on a blue keycap reflect that? it just makes the alphas hard to look at. You would never see red and blue touching like that in tattooing without some black in between them. Having them together like that is just wrong.
Also, to not have the KATakana kit and have katakana alphas instead of hiragana seems like a huge miss.
I would strongly suggest you go back to the drawing board with this. Sorry to be harsh, but American and Japanese tattooing have a very strict set of rules and imagery they use, so this set should reflect that.