Good luck with your game! I have been mainly using your sprites in a small "gashapon" or collectible app, and I want to add a "mech" series. I usually do 128 x 128, but your TCG dimensions were good too (64 x 96 I believe). Here is an example of what I am doing with your game. If you can make a mech asset pack that faces the front like this I would love it!