It must have been hard to choose... I like all of them, but these are my favourites:OMG, what a collection @juliank!
My absolute favourite is this:
"¡A full color! - Concurso de fotografía a color"
by @fakj94
But I really love these, too (in the order of appearance):
"Fish Art"
by @narchuk
"The Port in Vernazza"
by @adonisabril
"Huvilakatu - A Street bringing Color to dark Winters"
by @peachfizzle
"colourfulphotography - Marktbesuch in Laos"
by @mogli
"Colourful Floors during the Blue Hour 😉"
by @pixelfan
"Colourful Balloons"
by @mnallica