Does anyone know where I can get this game?

It is the the game shown in the middle pair of screenshots. Could anyone help me?

I'm very interested in anything regarding this port, such ads or any information. Let me know.

Thanks.

planetemu.net, type "castlevania" in Rechercher ROM and confirm with Enter. You will see a huge list of Castlevania versions for many platform to download, among them that amiga one.
Cheers, Tom