I need a custom trading strategy developed in Python using NinjaTrader. The strategy will implement a trend-following approach, utilizing price action data and market sentiment data as inputs. The deliverable should be a fully functional script that can integrate seamlessly with NinjaTrader, execute trades based on the specified criteria, and provide reliable performance. Please ensure the strategy is optimized for accuracy and efficiency while being well-documented for future adjustments. Proven experience with NinjaTrader and Python scripting is necessary to successfully deliver this project.