Global Game Jam Concept art and assets

Last weekend I participated in the global game jam with my friends, we had to create a videogame in 48 hours.
These are some concepts I came up with during the first night. Had so much fun with those trippy waves!

Models made in cinema 4D with quick paintovers in Photoshop,

Leon tukker sketch space
Leon tukker portal newfleet ending
Leon tukker portal
Leon tukker sketch space3
Leon tukker gate effect
Leon tukker titlescreen1
Leon tukker rendertest1
Leon tukker assets3
Leon tukker rainbow2
Leon tukker assets2
Leon tukker streak1
Leon tukker assets1
Leon tukker pink
Leon tukker abstractrocks2
Leon tukker sketch space2