West Indies assistant coach Roddy Estwick says the improvement shown in the recent Twenty20 International series against England was perhaps more pleasing than the actual 3-2 victory in the five-match rubber.With the series tied 2-2, the home side beat the world number one by 17 runs in a dramatic finish to the finale at Kensington Oval on Sunday, to claim only their second multi-game series win over England.More importantly, the success came on the heels of a 3-0 whitewash in Pakistan last December and an embarrassing outing at the Twenty20 World Cup a few months earlier, when they managed just one win in their group stage campaign.“After the last couple of months that we’ve had, it’s really pleasing that we’ve won a series,” Estwick said.