At the moment, my difficulty is to balance metal and orchestra. If metal is too powerfull, we don’t hear the orchestra. And in the contrary, if I reduce sound of metal, I lose in rhythm. So, yes I think, bass drum is a good solution to increase power of orchestra.
For the end, I’m working on an transition toward a part more metal. I want it more heavy than the beginning. But I still hesitate with other ideas. So we'll see !
Thanks !