Some people prefer Ficus nerifolia for it's Latin name. Same plant - willow leaf Ficus, just has controversial history with the official namers. It's a very good subject for bonsai. Easy to keep healthy, tolerates a wide range of conditions, forgiving, backbuds well, etc. I have a few little ones, and I don't bother putting them in the shade. They do fine.
As for styling, if you trim all of those branches way back, the growth will become much more compact. The branches will divide closer to the trunk - better ramification. It's a little scary taking a branch branch back beyond all the leaves, but if this plant is healthy it will respond with new growth soon on just about every one that you trim back. Then each growth will become 2 or 3 smaller branches at that point, each with smaller leaves than it has now.
Assuming that it's summer where you live, I'd put it outside. Others may disagree, but that's my opinion.
Have fun!