Keying in Nuke


Hey Guys,
So as mentioned earlier, am a student doing vfx compositing and editing in school
I am practising iBK Gizmo and IBK Color in Nuke ( green screen footage ). I have attached a jpeg image for your reference. please let me know if the output - end result is fine. Or if not, then what should I do?

Thank You
Siraj Ganju IBK_Gizmo_Keying1