This is a really nice set! I like the hiragana look, but I agree that Katakana may suit the Eva theme better.
While you’re looking at the kana set, please consider making the following changes/additions (here I have used the standard notation of using R1 for the top row and R4 for the bottom, which appears to be the reverse of how you have the rows labelled):
- Replace R1 む with ー, or add an R1 ー key. This is the syllable extending line character, not the kanji for “1” or anything like that. It’s often inside a dotted box on Japanese keyboards.
- Add an R3 む key
- Add an R4 ろ key
These keys are required for correct placement for people who are actually typing using kana input; also, without the R3 む, ISO users won’t be able to use the kana set either. For kana-only sets, I believe these changes represent a nice compromise that allows JIS, ISO, and ANSI users all to get the most out of the set without having to add to many keys, and I would love to see this become the standard layout for those creating Japanese alpha sets.
If you want to support JIS users further, the inclusion of a 2U shift (which you have! Thank you!) allows for the extra ろ key on the bottom row, and a 3U space bar allows space for the English/Kana keys that go either side of the space bar on a Japanese keyboard.
Thanks for your consideration! Please feel free to hit me up if you have any questions about JIS layout.