I'm gonna give you some criticism :
Good parts :
1) You scripted something unique to few maps
2) You made me intruiged as to what was in the map as it seems member mased.
Bad parts :
1) One word per slide is actually really annoying to read
2) You could go with 2 colours on your 'sign' background such as the red background and a black border. That would look 100 X more advanced.
3) The title of sign is a bit misleading, I expected a crappy video of you ysing set text on a sign, so a title such as this would be better fitting : Total Miner : Forge Animations With Creeps
That's not meant to sound mean, just honest.