I teach a graphics course for the IGAD ("International Game Architecture & Design") program of the NHTV University of Applied Science in Breda, The Netherlands. This is a 2nd year course. In block 1 of this course, students explore the topic of ray tracing. I encourage students to partake in a 'pretty image contest', where the goal is to produce the most visually pleasing image, without technical requirements or performance. The results for this year are in, and shown below. The quality is exceptionally high this year; although only a basic Whitted-style ray tracer is required to pass the course, several students implemented a correct path tracer, sometimes with BVH traversal and even one GPU implementation. One submission is from a student that actually left our program, but couldn't resist to hand in his assignment.

Here's my request for you: can you please select the image that you like most? After one week or so I will declare a winner.
Here are the contestants:
1:

2:

3:

4:

5:

6:

7:

8:

9:

10:

- Jacco.