You might want to have a re-think about the favicon - it's pretty similar to InVision's (https://invisionapp.com) and, while they're not quite in the same space, they're also not worlds apart.
They're both pink (a similar but not identical shade); one has "iu" and one has "in", both in white; one is a circle, one is a square. When I clicked the link I was initially confused because I thought it had actually taken me to Invision (which we use a lot), until I squinted and realised it was something else. I'm not saying they're identical, and I'm sure it's just a coincidence, but they are definitely similar to my eye.
