What is the network topology?

Hello,
I'm writing my thesis and I would like to know if the network topology is a famous one, or if it is a custom network that is the same across all unity ml-agents projects.

I've attached the plot of my pb file, just in case.

Thanks in advance

 

Most of the implementations are based on papers in arxiv:
PPO: https://arxiv.org/abs/1707.06347
SAC: https://arxiv.org/abs/1801.01290
GAIL: https://arxiv.org/abs/1810.00821
Curiosity: https://arxiv.org/abs/1705.05363

Some of the visual observation encoders are based on Nature and Resnet, but I don't have references handy for them, and this isn't the default setting.