Top hand ring finger bottom hand index show that the tips are to big , you said there on short nails right ? With no free edge? Is it that you have put them on straghetend at the side Walls with file but not got right diwn there? Also could the "gap" be the tip pushed up at a slight angle from the bulbus nail bed skin where there is missing natral nail?
When you tip don't be scared to thin the tip right down with the file before you add the product , the tip is only there for shape (and the color White) so thin it down,
if I had tips this flat I would make the smile area with my file have you been shown how to do this? If not i'm sure there's a lesson somewhere on here for it,
I think the last poster "hit the nail on the head"
Maybe you applyed tips looked ok ,(didn't thin them out though)
applyed the L&p and glitter looked ok ,
then added more L&P to cap the glitter ?
I think you shuld ditch the tips get some with a nice smile and start practicing your smiles