When I zoomed the image, I do see the poor aliasing. If MSAA doesn't solve those aliasing problems, it is likely due to the game engine not allowing you to apply MSAA to those surfaces. MSAA doesn't apply AA to anything but the edges of objects, and if the game engine doesn't consider it the edge of an object, AA won't be applied.
SSAA applies AA to everything, including textures and transparencies, but many games don't allow you to use that either. MLAA or FXAA, depending on the brand you use, is the only thing that can help, but neither do a great job like SSAA does, but they also do not kill FPS like SSAA does.