Hmm... I guess you like Radio Ga Ga! I'm slightly lost for words, because I don't want to shit on your first mix. It sounds like one of those trailers or adverts they put out for new albums - a series of clips, thrown together, with no real sense of continuity or compatability! The WWRY into Tear It Up might have worked, but you need to make a better edit. IWTBF and AOBTD might have actually sounded good, had you done a proper edit between the two tracks, as they are roughly the same tempo. That fade in / out idea doesn't really constitute a 'mix' of two tracks. Shall I go on? Perhaps not. It's a nice idea making a 'live medley', and at least you stuck to one concert, so the sound mix is consistant, but my advice is you need to work on finding compatible edit points, tracks which 'suit' each other, making the transitions smoother, and getting yourself more familiar with the software you are using, so that you can use it to better effect.
Hope that wasn't too harsh - you had some good ideas, but, as you are probably aware yourself, the practical side needs some practice! Hell, you are braver than me - I wouldn't have posted MY first mix on here to be pulled to pieces!
Remember to deliver with the speed of light
A little bit of love and joy