Master ero-mangaka 鳴子ハナハル / Naruko Hanaharu caused something of a sensation with his hugely popular debut compilation manga 少女マテリアル / Shoujo Material recently, but in reality this covered only a fraction of his work, the rest of which is rather scattered.
Here you can see a substantial portion of his stand alone illustrations, posters, CG, etc., most of which are now difficult to obtain.
Plenty of his non-ero work is also included, and he deserves credit for doing a fantastic job on these too (he now has plenty of anime character design under his belt too, chiefly with Kamichu, so his career is pleasingly balanced).
You may be rewarded to browse the gallery on the Channel. Feel free to contribute any which are missing.