Most biplanes are a pretty big jump from your basic high wing trainer.

Biplanes tend to have short fuselages and they pitch and roll much faster than typical monoplanes. Unlike your trainer, which can easily be dead-stick landed as it glides in as easily as most sailplanes, biplanes tend to float like a rock. Two wings create twice as much drag, and biplanes have to be landed under power or they normally go "splat."

Biplanes are also more challenging from a building/assembly standpoint. Wing incidences need to be set up properly and balancing the CG is trickier. Many biplanes can be a considerable amount of work simply in the transporting of them and then attaching the wing assembly at the field.

I would highly recommend you try something like a T-34 Mentor or AT-6 Texan ARF before attempting your first biplane. This would give you a chance to fly an aerobatic low-wing trainer and get used to things like engine cowlings and landing under power before trying your first biplane.