I see definate potassium and phosphorous and probably need a little cal mag and believe me its the first time i ever thought id recomend cal mag. Yer just looks like it needs some bloom ferts, biobizz bloom would do it or anything similar, somthing with the macro and micro nutes in and good p/k ratio. The bud looks like it got three weeks at a guess but who knows, i do know that the p/k deficiency will slow the bud growth down a bit. Don't yet know much details about your ferts schedule or what you use but just going by those pics thats my recomendations. Some textbook deficiencies in one pic on the leaf edges. Nice looking bud by the way, looks very fruity and nice like i wana smoke that sh!t when its finished. Good job so far just a good fertilize like i said.