The resolution of the screenshots is the same as the in-game resolution (1280x720p) but I did update my lighting technique as I continued to develop the game, so later scenes certainly look better (I hope).
I'll be updating the older graphics to my current style once the game goes into beta.
I'm a solo dev and this is my first project, so I'm learning as I go. Please be patient with me ;) And I hope you enjoy the game!