Firstly you're going to want to change the name of this deck on the forum from B/G to G/U (it'll be easier and less misleading for people to help).
Secondly the deck is using G/U from what appears to be mostly Tarkir. The thing about the cards that you chose is that You have Temur, Jeskai and Sultai. The cards themselves are good but no RED, BLACK or WHITE throws off the
balance of the cards' main mechanics. My advice is to try and focus on one particular group, This way the consistency stays good. Personally you should stick to the Sultai and use the temur creatures as a support, and jeskai spells for the side board. this way the deck will have structure to it.
Thirdly know what you want the deck to do and what you want to focus on the most. Once you have that GOAL in mind it'll be easier to develop a game plan for this deck.