Dan (illustrator) agreed that the best design as it is simple and he said he doesn't think a logo should be over complicated.
Stephen (photographer) said that the Euro design is nice, but it doesn't really portray what the company is about. He said he prefers the final design, and I should try to incorporate a concept into that.
Ollie (graphic designer) said he preferred the last design as it's minimal and legible.
Molly (illustrator) agreed with Ollie and said the last design is the most successful and she thinks it'll be the design that works the most successfully in colour.
After receiving this feedback, I am now going to try the design in colour, and maybe experiment further with it.