Wow, thank you for so big review!
About the menu, we will try to update it. I think about changing low-quality screenshot to high-quality with small animation, that will show your progress in the game - there are will be screenshots from the current last opened location. What do you think?
About animation - got it, I will double-check conditions.
About controlling, do you play with wasd? I will remove this option, and leave arrows only. We checked a lot of platformers and almost all of it use arrows instead of wasd: LIMBO, The End Is Nigh, Broforce, Hollow Knight, Super Meat Boy, and etc.
About skipping the selection of the level, I'm not sure. I want to make the user see the room every time he starts the game because the room has a big meaning. It becomes more alive when you will collect a child's objects in levels. You will see your progress there and it will force you to replay levels, where you didn't found the room object, or don't bring the flask on the finish.
Thank you very much for your feedback! We will do our best to not disappoint you on release! =D