Both forehands are just fine as is. Could use more solidarity on stance and feet, posture also, but just fine at the 5.0 levels.
Modern forehands is all about heavy topspin, and both seem to be able to flatten it out at will. No problems there.
"they hit like girls"..... I didn't say that, but as a junior just coming out of the growth spurt, they and we didn't hit like "men" either. Once fully grown, they can hit like "men".
Kids still growing cannot hit like men. They are uncoordinated, weak, still getting used to changing bodies, muscles, bonelengths, and still adapting.
Both these guys hit GOOD.