Avery Singer is a notable figure in contemporary art, recognized for her digitally-rendered figures and innovative use of technology in painting. Her work in the period from 2015 to 2018 marks a significant phase in her artistic journey, reflecting a blend of traditional techniques and modern technology. Unfortunately, specific discussions on Avery Singer's digitally rendered figures from 2015 to 2018 are scarce in publicly available sources, and detailed analysis of her works during this period was not directly found in the search.

However, it's worth noting that Avery Singer has been acclaimed for her use of 3D modeling software to create sketches of her compositions, which she then projects onto canvas and paints over, creating textured, grayscale scenes that interrogate the nature of digital and analog art making. Her works often explore themes related to identity, society, and the digital age, offering a critical perspective on the intersection of technology and human experience. Singer's innovative approach places her at the forefront of discussions on the future of painting in the digital era.

The art world's dynamics, especially the role of galleries and representation, also provide context for understanding the environment in which artists like Avery Singer operate. The period of 2015 to 2018 saw significant changes in how galleries function and compete, with mega-galleries like Hauser & Wirth expanding aggressively and signing young, promising artists like Singer. This reflects a broader shift in the art market towards a more global and competitive landscape, where influence, innovation, and the ability to make an impact are key metrics of success​ (Artnet News)​.

As for Avery Singer specifically, her inclusion in a roster that includes other high-profile artists underlines the significance of her work and the high regard in which it is held within the contemporary art scene. Her association with prominent galleries and participation in major exhibitions underscores her influence and the critical acclaim her digitally-rendered figures have received.