I understand that you want to get on to CGI and 3D animation. I think that is great but at this stage, it is nowhere near good enough yet to be made in to a TV show. Keep practising. In this case I would say less is more. Focus on getting a 5 second clip perfect before trying to make a 3 minute clip average. Sci-Fi is perhaps the one genre of film that should not be attempted without a budget. Sorry, just my opinion. Maybe write this as a book first.