The main reason for this is because i am in awe of the huge amount of artstyles, along with overflowing imagination, one character ( Asriel ) can be interpreted in countless way, cute and femboyish in Desertkaiju, or realistic goofy in Inax's style

While "studying art on e621" would be a little weird, learning art from artists is certainly viable. Tons of artists have either free or paid content describing their process, what they do, how they do it, some even have their brush sets for sale and tutorials on using them. You can also learn things about time/project management, marketing and other "secondary" aspects this way.

What does your art look like now?