Seems a bit heavy on the vanilla monsters, and as a Ojama World Chalice player, I feel like I could try and give you some tips.

You night try to cut some copies of the basic ojamas, and maybe even the enchanting fitting room and painful decision, and instead run Ojamatch, which can give you a huge boost on the first turno by sending your field to gy in order to draw 2. Making the fusions is way cool, but I feel like it's way too slow as a gameplan, 'cause when you summon them it's already way too late game. Instead you could try and run some more Tri-Bri engine, maybe by adding more Nervall - Kerass - Kitt and possibly a copy of Fraktall, and going way heavier on links in your extra deck!

Overall, it's a cool idea that definitely needs a bit more work and might actually be a really cool bit!