Hi there! You are so right, we wanted to start a dev log for months now. Feedback like yours motivates to document the game's creation even more. :D Thanks for that!
And now that there's more time available (staying home and such) we are getting A LOT done, A LOT faster.
We are using Aseprite for the pixel art. Here it is in action: https://www.twitch.tv/videos/503020747
We are going to be posting in here more regularly now, definitely. :)
best
j