If u would hv posted a pic it would hv been easy to comment exactly, if u notice the upper  two front teeth are bit bigger than the next two n everyone,but if u feel that it's looks odd on u,then u cn go for a smile design,in which same tooth colourd caps (crown) Wil come above ur existing teeth and it can gv whichever look u desire for,it can be done n max 10 days duration,even ur gaps Wil be covered by the caps,ur existing teeth Wil be reduced n size to make space for the cap to go in.there are different types of caps,since it's the front teeth,full ceramic(zirconia ) material is recommended.the price range varies from place to place it cn go from 5-9k per cap,