I would have rather have this be a Legendary Scale Rancor like the Cave Troll or the Balrog.
Trying to put Luke in there or the Gamorrean guard just looks forceful in the composition. The way the one arm is raise (looks photoshopped and kind of long) and the way the other arm is just shopped off makes the piece not flow right. The then base has than tube/neck thing coming underneath the piece....well, it doesn't look right to me.
Again, I can sort of spot your involvement on the Luke likeness (correct me if I am wrong) and the sculpt is well done. I am just still feeling VERY disappointed at what the piece turned out to be. I am getting Spidey Vs Venom dio flashbacks.