It actually looks less front heavy in the first pic but i think thats because she is stretching down making her neck look leaner and longer.
The ridden picture is at a funny angle but she does look very on her forehand. TBH its not her fault heavier types do tend to naturally work on their forehand more than say a finer warmblood would. You want to try to do work with her that will help her pick herself up, lots of upward transitions.
