Render helpppp!!

Hi guys 😀

I finished my second year of architecture and am halfway through my summer break before I start the third year. In year 2 we were introduced to the digital workflow and used it to make drawings, diagrams, and renders. I usually went with a collage style of renders but they never looking refined as I only used my rhino model and Photoshop, with no render software. I found some images on Pinterest I want to learn how to replicate using my own designs but I'm not sure how to go about it, like which softwares to use and how. So could anyone here please tell me in a little detail how one would achieve such renders?

Thank you so much :>