|Credit: see below|
We have already mentioned Shlomo Seider in this blog in previous posts, and we noted that there is a memorial site for him. The site in question had been taken offline, but Yochanan Afek pointed out to us it was replace by a Facebook memorial page. The page is in Hebrew, but there are many photos, including of family, personal effects, etc. It links inter alia to the Wikipedia page about him, and a lot more).
In particular, the memorial page has, not only problems and notes by him, but also interesting articles by him. In particular he argues in one article that, since chess composition is first of all an art and only secondarily chess, one should not be dogmatic about not allowing illegal positions (which cannot be reached from the array), or even positions that have no solution, so long as the thematic beauty of the idea is great.
The site, in particular, has numerous of his "original paintings" -- that is, the problems he sent to problem tournaments. Here is one, which won an honorable mention (as the Hebrew on it shows), which uses seven grasshoppers (the "upside down queens"):