ILLUSTRIOUS / PONY - Another veteran DeviantArt artist, with over 10 years to be precise, works in a semi-realistic style, depicting defined muscles and also incorporating furry elements. He's possibly on hiatus or has stopped creating, but his pages are still active if you'd like to check them out. Here's a great exercise to help you apply his style. Thanks for the support!

DeviantArt: https://www.deviantart.com/swemu

Furaffinity: https://www.furaffinity.net/user/swemu/