Hello, fairfaxleasee, I am very happy to hear you had fun with the game.
I have no current plans to add a CG gallery but I will certainly keep it in mind for future builds/games. As for the credits, do you mean the credit screen at the end of the routes? It should disappear after 5 seconds or can be skipped through using Ctrl (or the button in the quick menu). Either way, it should return directly to the main menu afterwards, so please let me know if it is not doing that.
Many thanks for the feedback