An Artist does not copy another artist’s artwork. It is an unspoken law and respect between follow artist. You are doing yourself a disservice in speaking as far as your own artistically growth.
If you are going to “Look” at other artwork for inspiration is one thing; taking the concept of another artist’s artwork but then making it your own depends on how you approach your artwork. Don’t be afraid to work and rely on your own abilities as an artist. In the end you will grow in skill as well as character.