I like the sound alright, but I don't like all the y's and n's. Skylin would be better, I think. Skylinn even. Skylinne? Nah, looks too much like "skyline". Anyway, I like the sound of
Sky + lynn, but I really don't like the spelling. I don't like "lynn" in general (I always want to change it to lin or lyn). But in this case, Skylyn also looks weird because of the y's. I think Skylin is probably the best option.