I play retro games and love them far more than modern ones, but the image you posted doesn't make me want to play at all.
To be honest, a retro game isn't just one with fist-sized pixels; "retro" games are the product of an era when hardware imposed significant limitations. Games were built around those constraints, yet they could still be incredibly complex in terms of mechanics or even graphics.
If my feedback helps: seeing just an image of a game with fist-sized pixels doesn't entice me to play it (and bear in mind, I've been playing *H.E.R.O.* on the Atari 800 this week).