The best advice I have is you must simplify the look of this app. Less focus on card art - make the images smaller and leave more room for the text and numbers. Its clear that much work has gone into making this game look good, but not the right aspects. KISS reigns supreme for a reason. Look at the mainstream games and how basic their graphic design is. You need to switch from a tabletop card game mind set and think 100% digitally.
Good luck, looking forward to seeing this develop!
D-Ray Da G0d about SolForge