I've been trying to get back into 3D Modeling and remembering how to use Blender. I was watching a lot of "Blender Guru" and decided to try one of his tutorials. I never used the particle system on blender before. It was a huge confidence boost for me once I learned how to use it.
Looks like you might have forgotten to set smooth shading on the icing and cup in the background as you can see some faceting in the meshs. Also I think the icing could use a bit more specularity, do you have a glossy shader in the material? Well constructed scene though, good job!