These Fantastic 4 Custom Minifigures look, well how do I put it, Fantastic!
The Fantastic 4 Spider-Man is a pad printed minifigure by Christo and only 30 were made making him highly sought after.
Sue Storm, Johnny Storm and Reed Richards are also pad printed and they are by Muddy River Minifigs.
Finally, the Big Thing is by Chinese brand Decool and you can pick up one of those off ebay quite cheaply.
Overall the quality of the pad printed minifigures is great and as a collection they look great together.