V1 is the Best One But it looks Empty The Background is Beautiful All it needs is a Picture in the Middle or somewhere I love how you mixed the colors up and the lines are perfect Just add a Picture :3
I would add a picture, but all the colors is gorgeous. I like the first one better, firstly because its not so pink, and second, because all the colors are really eye catching.
I like the first one the best! Mostly because of the rainbow colors all intertwined together. And I like the twisting and swirly patterns in there. But it seems like it's missing something in it... but it's still good! :D
Oh I really like the colors! The only advice I would give to you is to add in a picture and maybe some words and you're good to go. Pretty colors though! I especially like version 1.
This is actually a pretty decent abstract. Only thing it needs is a focal and some sort of discernible organization.