I think that vertically, it does look a more attractive now! I still feel like it’s not well organized horizontally though. What happens is that I see “Casual form => Past casual form” and then I’m forced to go “past casual => past formal”, which is not how my brain visualizes it. I think this depends on how one learns verb conjugation. Let me explain:
If you guys believe that learning 歩く => 歩いた AND 歩く => 歩きました is the way to go, then I think having 2 tables separating casual from formal would be ideal (in parallel). What happens right now is that by looking at that table, my brain associates 歩く => 歩いた (perfect, that’s how I learned, that’s how I visualize it in my head and that’s how I’m seeing in the table) and 歩いた => 歩きました which feels extremely awkward for me because in my brain I don’t go “past casual => past formal”, but “casual form => past formal”.
Nevertheless, this is me going deep on details (as you guys know me). I think that your version does look much less chaotic now 


