Кстати об авторах не так давно случайно встретил на девианте автора
Coliseum - Kantxo Design.



вот что он сам пишет, о своей работе:

Loading screen of the videogame Coliseum by Topo Soft (1988) for the ZX Spectrum home computer. Note my signature at bottom-left. It is based upon an illustration by Alfonso Azpiri.

Today, this style is called pixel art, but it was the state-of-the-art by then.

Note: this screenshot is from abandonware. Currently, it doesn't have copyright holders around.