DPS, people that interact with your new name will largely be in passing. And I think, if Irisko really resonantes with you, then that is all that matters.
Naming can definitely be difficult for our community, and leaving our dead names behind. Some have a girl or boy name in mind for many years, some only really think about it after transitioning begins. I guess I was a bit of both, because I just used the name of a character I made on Final Fantasy 14, and It's not like I use this name anywhere else besides Susans/Youtube/Twitter.
When I first made my twitter, I used my real name, and changed it after deciding to use Eryn for Susans. I'm definitely an outlier here because my birth name is VERY androgynous and I likely won't be changing it. Still, I would like to be called Eryn.
Anyway, like I said. No use in using a name that you're not fond of just because you think it might sound more masculine. We don't get to choose our names at birth, but we get to choose them now. So, it's entirely your choice, mate!