This papercraft is a Super Saiyan 4 (SS4 or SSJ4) Gogeta, from the Dragon Ball GT of Dragon Ball series, the paper model created by marcostsjr. There are other Gogeta paper crafts on the site:
Dragon Ball Z – Life Size Gogeta SSJ Free Papercraft
Dragon Ball – Realistic Gogeta SSJ Free Papercraft
Dragon Ball – Gogeta SJ1 Cube Craft
The Super Saiyan 4 form is seen in Dragon Ball GT, where Goku and Vegeta both faced off against Omega Shenron as Super Saiyan 4. With the Fusion Dance, they successfully created the powerful Super Saiyan 4 Gogeta. Unlike Vegeta and Goku's Super Saiyan 4 forms, Super Saiyan 4 Gogeta has brown fur and fiery crimson hair, instead of the opposite, and he is the only Super Saiyan that features blue eyes as well.
He is also the only character in the series with glitter in his energy aura. Compared to his more serious form, Super Saiyan 4 Gogeta is somewhat more playful and cocky, toying with the evil Omega Shenron instead of easily defeating him, possibly because the power was going to his head, though Vegeta states that Goku was in fact responsible for this behavior. It could be implied that Gogeta's personality may be based on a combination of Goku's youthfulness and Vegeta's arrogance, though this is only speculation.
It is also implied he was only doing this so Omega Shenron would use his Minus Energy Power Ball attack, which Gogeta could use to fully cure the planet of Omega Shenron's evil energy. This is likely, as Gogeta immediately tries to destroy Omega Shenron afterward. His speed in this form is the greatest seen in the series, being so swift, not even the viewer is able to see his movements.
As an example, he is able to knock Omega Shenron away with what appears to be impossible to see blows, which are shortly later revealed to be three, almost simultaneous strikes. When Gogeta said he would slow down in his attacks so he could "count em' this time", those same strikes appear as simple twitches, if anything. Along with his unbelievable speed, Gogeta also harbors an extraordinary amount of power and energy.
As a Super Saiyan 4, Gogeta is seemingly invincible due to the massive power level gap between him and all other warriors in the series. His only weakness is his inability to stay fused for longer than 10 minutes due to the abnormally huge amount of power he possesses, which ultimately led to him de-fusing before he could deliver the final strike to Omega Shenron. This is similar to the way Gotenks defused back into Goten and Trunks or falls out of his Super Saiyan 3 form before he can attempt to finish Super Buu off. [Source: wikia]
You can download the papercraft model here: Dragon Ball GT - Super Saiyan 4 Gogeta Free Papercraft Download