Hi, my name is Mauricio, im kind of new in this page but i have a lot of experience working in 3d.
I can make the concepts and the 3d renders of the events, and even videos as you need.
I also have experience working as a game level designer so if there is a big event and i have some time to create it i can make an interactive level for you of the event with ligngs, special effects, interactivity, etc. For this i will use Unreal Engine 3d, i have a development licence and a cerrtificate from Epic Games.
For the modeling and render i use Blender 3d wich is an amazing tool because i can do al the workflow in the same tool, from modeling, sculpting, unewapping, texturing, preparing the scene and rendering, even animating.
I can do a free test for you and if you like m job, and im sure you will, you can assign me the project here on freelancer. If you have more than one project to do we can make an arrangement and i will give you a lower price for each.