My largest inspirations in terms of perspective skill are easily Kim Jung Gi and Dong Ho Kim from the Superani crew. Another large inspiration is an artist nicknamed 'Fishine' who I cannot show samples of, since their artwork that shows (in my opinion) their most impressive perspective figure work, is highly NSFW, and most likely not appropriate for this comment section. The largest, broad issue I want to solve with my perspective knowledge is freedom. Having the freedom to draw whatever I want, from whatever angle I want, with whatever focal length lens I want, is the ultimate goal. More specific goals I'd like to really focus on is learning, is exactly how ellipses distort in perspective, how perfectly accurate distances and measurements change in perspective, and how to properly manipulate and distort objects with curvilinear perspective.