Artist tag "takaya-ki"

While looking for takayaki I stumbled upon takaya-ki. The two images currently under the tag appear unrelated. One of the images comes from the site listed under the artist entry (http://www.geocities.jp/elienigzer/), but the other (post #286251) was by another artist altogether so I retagged it. There is one other image with that site as source (post #336996) which has no artist tag but I've not added the tag as I cannot see where it comes from - I cannot see any mention of it on the site, which names two managers, Amano Yuu and Hi. Anyone know where this tag came from?

I don't know, but the takaya-ki guy is worth tracking. What should he/they be named?

管理人/天之 有(あまのゆう). Hi is also mentioned, but all the finished art seems to be in the same style, so isn't it just one guy going by two names? That's fairly common.

Looking at their site there's some unsourced images here I recognize. Artist created. I think we can just use amano_yuu.

That was my solution, but wanted to check with other who can read what the site says better than I can.