The logos look sharp but you ought to rethink the use of opacities on the art, it only highlights the low resolution scan that it originated from. Perhaps a screen colored overlay instead of a neutral opacity would be best, hell you could even make it match the color of the game genre and all. Keep the logo's intact though, that is the epicenter of the whole idea.
Kpj made similar custom labels without the art as the background. Your MVS logo is on par but the Multi Video System legend is not. You see, I was there when the MVS logo that was used for this lables was made, it was just a replica with the curved M, however after a while the MVS logo was redone to match the proper MVS logo used on the cabs and labels which I changed for all templates but never got around to doing the Multi Video System change on the labels thus what you see in your labels now.
A piece of advice and the easy way out is to grab a hold of an insert template from ST and grab the multi video system legend from it and use it in your labels, then it will look closer to legit, it maybe worth a while since you're going through all this trouble to make "new" labels. If not, at least match the legend to the logo size, should be easy enough to do.