Gap looks too large, maybe just my feeling because of mobile video. Feeler gauge is cheap. Ring gap should be 0.1 to 0.25mm (if it's above 0.4mm, needs replacement)
@honey dozer I am amazed by your work especially because you have done all of this on your own. Not sure abhi aap active ho youtube par, but I am thinking of polishing(but not making large) the inlet port of my uce classic 350 all the way to valve bowl and down towards valve guide. Aapka kya kehna hai, isse performance me kuch improvements aa sakta hai?