The following illustrations are from 馬越嘉彦原画集 03, supposedly. I'd really like to get my hands on this thing.

http://doujinshi.mugimugi.org/book/452051/

From Ken Ootsuka's pixiv.

I thought these were by an animator involved in Omega, but somebody told me they're just good at imitating Umakoshi. This is what their profile says, in case someone can clear up the misunderstanding.

▼ざんねん　な　アニメーター
ホモも百合もノーマルもエロも描くので要注意
人間と人外のカップルが、大好き!です!!体格差があると尚良し!
アニメーター馬越嘉彦さんの追っかけでもある

現在聖闘士星矢Ωハマり中
18歳以上の、腐に理解あるΩ好きさんよよよよ良かったら…!!!
★星矢用ツイッタアカ　twitter/23_omega/

キャシャーンsinsはずっと嫁ジャンル
アコキャ同志随時募集中だよ!＼(＾o＾)／

In any case they do a lot of BL stuff.

>▼A lousy animator
>I draw gay and lesbian and normal and erotic stuff, viewer discretion is adviced.
>I love human/monster pairings! Yes! The contrasting bodies are just amazing!
>I also look up to the animator Yoshihiko Umakoshi.

>Lately, I've gotten really hooked on Saint Seiya Ω.
>I like the 18+, fujoshiΩ, and I'd l-l-l-l-like to...!!!
>★Seiya-reserved Twitter: twitter/23_omega/

>Casshern Sins will always be my favourite anime.
>I'm always looking for new Akokya's, you know!＼(＾o＾)／

I don't get this otaku slang Japanese.

>>31983
I should probably mention these two are spoilers.

I can't be that mad at Toei for nerfing Shun in every anime original situation when that means I get this kind of service.

>>32577

>>32579

Souma, I love you so much.

>>33130

>>33131
This would go before that one.