Thanks! The bugs are a surprise to me, but I've already modified my code in a way that I think will fix it. I created my shaders to have this aspect of illustrations, but I know that lighting is a problem. This week I managed to fix the shadows. I also created a tool to facilitate the adjustment of the lighting, this will improve the look. Over time I will improve the bad animations and everything that deserves to be improved, this project still has a lot to grow and I am very willing to make it happen.