There is old games like Phantasy Star 1 to 4 on Genesis using icons, lot more clear and intuitive at first sight, instead of words (golden sun on GBA also and lot of others)
Well dod as you like But for a begin, it's a solid base you have there : Menus, character portrait, 3D tiles and grid.
you'll just need good characters classes. What will you choose : - Making all characters on your own - Buying some on 3D sites like Dexsoft - Buying or creatign a base character, and adding armore stuff yourself to make the different classes of the game ? - Using sprites ? (why not , but i really prefer 3D characters smooth moves)