Tip of the hat, sure, but it's still original work. Hell, when I was a teen I drew something damn similar to the upper horn on this, long before Jeremy (who far as I can tell isn't even building any more, and I always found his waffle about copyrighting his guitar design to be, well, excessive and overblown), but do I care? No. Guitars are guitar-shaped for a reason, and Ibanez shares plenty of features with other superstrat makers, BC rich has crazy pointy horns all over the place, etc.
Make an original design that combines various aspects in a coherent, holistic fashion, and it is a new design. Everyone in the know will recognize where various design influences and elements come from; that's plenty. The original designers often as not built on what came before.
I build guitars in the 'Gibson' tradition, mostly; mahogany-ish bodies, often carved maple tops, mostly set necks. And yet they are my designs. The outlines and contours are unique to me, albeit very obviously belonging to a certain 'family' of guitar designs. I combine carbon fibre reinforcements, chambering, sometimes even carved spruce tops with bracing, design ideas I've seen in various places and combined into a whole. Do I acknowledge what came before? Of course. But the whole, if coherent, becomes a new 'original' piece of work. And it's not stealing other people's ideas, it's being part of a creative community where ideas spread like memes.