Yes she is a ewe lamb and getting almost sociable for a Castlemilk or is a bit stand offish for a Shetland!!
Mine are the other way about. The Shetland crosses are still a bit standoffish, though improving, and the Castlemilks as you know are delightful pests!
I'm not a fleece user but do want to produce nice fleece so this will be interesting - oh and ram was a Grey shetland - my lovely boy Silver
Should be gorgeous. I have two Manx x Shetland ewe lambs to take on this year, the one is a grey katmoget and her fleece will I think be fantastic. The other is a moorit with good crimpy fleece but less soft. I also have a (part)Charollais x Shetland ewe lamb with fabulously soft fleece, and her half-brother is such a good sheep with such good fleece we are planning to use him on some of the commercial small (Dutch Texel x) shearlings (first timers) as well as my little fleece flock.