A balanced foot is medial laterally balanced to the cannon bone with the heels under the center of the cannon bone. The hoof angle should be the same as the pastern. Some horses will be steeper some lower. They should have some depth to their foot with frog support but not frog pressure.
The toe length should be the same on both front and on both hind. But may vary from front to hind.
Foot balanced with shoe.
Balanced to T-square
If all horses were trimmed or shod like this there would be very few lame horses.