I am a FX artist. I have 7 years experience working in Houdini FX and I am mainly specialized in special effects such as particle simulations, fluid simulations, Pyro (smoke and fire) simulations, vellum, and RBD fracturing dynamic simulations.
For every simulations I need more details. Because in the VFX world, details make the difference between a good simulation and the rest.
Like: fps, storyboard if you have, references, pictures or video, simulation length, how many simulations.
So after I will have all these details, I will be able to approximate the creation time and the budget.