I cant tell you for sure but I know my Leo has 2 very big obvious bumps on his vent and for some reason looks a bit chubbier then yours, and I only feed him once a week or so
When Leos mature and start to show their adult colors, the genitals of a male become obvious. Mine is a male. Males have a visible bump near or below the cloaca vent
looks like a female. there are 2 things to look for, between the legs are femoral pores a "v" shaped group of dots that darken in mature males ,the other way is hemi penal bulges at the base of the tail. ive found that gently lifting the tail from behind is the best way to view them. i see neither of those. do a google image search of sexing leopard geckos for detailed pictures.
Kirk
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