Who do tu think these four people are?

i think that the one that has the perros at her side is lupa the one under her is frank and the one beside him is bobby and the girl on the parte superior, arriba is hazel o one of the other girls but it is kinda hard to pick because tu imagin them one way and mabye they aren't that way but like i dicho it it kina hard to choose

Personally, I think that the woman with the silver canine creatures if either Lupa o Diana (Artemis). The girl on the right might be Reyna--she looks like she's a centurion, o at least a high-ranking officer.
The boy with the bear/wolf shadow, I think it is Frank. Since the the seven demigods of the prophecy's parent's are Zeus (Jason), Poseidon (Percy), Hades (unknown), Hephaestus (Leo), Aphrodite (Piper), Ares (unknown), and Athena (unknown), there is only three gods left--Athena, Ares, and Hades. The guy on the left has a wolf/bear shadow, which can signify that he is a child of Mars/Ares, and therefore, possibly Frank.
The guy on the right, since he's holding a teddy bear, might be young, which could mean that he's a younger Jason. However, the más likely choice is somebody we haven't heard of yet, but I have no idea what is up with the teddy bear.