If your pond will be in full sun, you will need to beware of the water overheating to the extent that it becomes inhospitable to the kinds of plants and animals you are hoping to invite. I used to live in GA myself for years and have made a few ponds there. I always tried to have a deep portion, at least a couple of feet, where the water would stay cool and any fish, tadpoles, and insects could shelter there. Marginal and floating plants will help too.
Counterintuitively, a small pond like this makes for good mosquito control in the surrounding area. This is because most mosquitoes breed in ephemeral water that dries up after a short time. Perennial water breeds some mosquitoes but it also harbors and breeds their predators....fish, frogs, etc. Some of these predators, such as dragonflies and toads, disperse from the pond out into the surrounding landscape and continue to prey on adult mosquitoes there.