When I was trying to improve or whenever people ask me how to improve I just say "Stop playing on autopilot" in other words try thinking about what you're doing more. As in playing eve think about which side of the map the enemy jg is on, at which time would he be on that side of the map? also take into account the champion he/she is playing how fast that champion would normally clear and if you can kill them in their own jg, eve is all about making the early game hell for everyone and snowballing that into an unfair advantage for you or your team. The more you can break down the game into coherent thoughts and actions instead of just doing what seems best at the time, try thinking ahead and planning ahead for every outcome, this is what separates high elo and low elo.
Good Luck out there![slayer-pantheon-thumbs]