Dilemma: post #102245 and post #177604 share visual similarities. One is tagged yuraofthehairfan. The other is tagless.
However, these two artworks bear greater similarity to mitora5's works.
yuraofthehairfan's works go back as far as March 2006. Mitora5's in 2008 on pixiv.
It would be borderline impossible for the two artists to be the same, given their tastes don't match up to the present day.
About a decade ago I remember investigating this, but pixiv wasn't in my grasp yet. So I can only verify this- I did not find evidence to suggest yuraofthehairfan is the artist. At the time, I could not find either piece in either of yothf's galleries (deviantart/hentai-foundry). Furthermore, yothf's earliest works were rendered... Pixely? I don't know the word to describe it, just look at the march 2006 link.
In any case, I must deduce that yuraofthehairfan is not the artist behind either. If anyone can find out where those pictures came from- even any earlier post date than what's here on danbooru- That'd be appreciated.