Great effort. Great way to start a Queen concert. The transitions between songs are not noticeable at all. A couple of things to try if you have another crack at it, however:
You could try using a live recording of the intro of an early Queen concert rather than adding crowd noise to the background of the studio recording of Procession. This would sound more authentic as you get Freddie's beauties responding to the music rather than just randomly cheering (I don't have many early concerts but Kobe 23-4-1975 is a good example).
Also you could try to find a better recording of Ogre Battle - Freddie's voice keeps cutting in and out (again I don't have many early concerts and I know it would be tough to find one with a good performance and good quality recording).
Overall a great idea and 8.5/10 for excecution.