help me please

I am trying to come up with companion plants in a contaier to go with a broken glass begonia as the focal point,it has great leafs but not flowwering yet so dont know the color of bloom any ideas. Doing this as a birthday gift for MIL

Art, When I took a mini seminar on containers one thing I always follow , one plant for height, one to spill over, and plants to fill in between.
Sometimes I look at the Proven Winner website and Whiteflower farms website for inspiration.
Could you post a picture of the begonia?

I will try but with my techno knowledge she might be getting it next birthday lol

Here is the link for proven winners. Have fun

http://www.provenwinners.com/combinations/

A combo pot I just put together, no begonia but I did put a pepper plant in it. lol

Here's a couple of my shade containers

Maybe a purple shield to add height, and a sweet potato vine to hang. Ora shrimp plant for height. I love those.

well here what I ended up with. hope she likes it