I tried this out and it is quite decent. There are lots of flaws for example the lack of variety of moves. Most of the abilities we can do is mostly spell damage, physical damage and healing. Maybe you could add more moves like buffs or debuffs. There is also the TP which I have no idea what the use of it is. Is it like a final fantasy limit break?  Then maybe other than combat mechanics, you could intorduce shops like weapon shops, armor shops,  potion shops etc. Other than that I think you are on the right track. Hope the game is progressing well!