I'd echo a lot of what @maccavennie and @Eggs have said.
The players I've seen the most are Ledson and Kenny, imo both have a good chance of being around the 1st team squad next year if not sent out on loan. Dowell and Walsh have been namechecked by Martinez in the past as being possibles.
Two I haven't seem much of and am looking forward to are Henen, who has been on a good scoring run in the Everton U21s the past couple of months and Holland, who had an excellent game for the England U17s earlier in the week.
Great competition for them to be in, hope they do well.
Yep I hadn't heard of Holland LL until you posted about him a few days ago so will be interesting to see how he fares. I really liked the look of Henen against the RS a couple of weeks ago. Considering he was up top on his own I thought he ran the channels well and stretched them when given the opportunity. Tired towards the end but put a shift in. He's got something about him imo, don't know if it's enough to get Everton to sign him but he's definitely improved since he first signed on loan and Unsworth has praised him for his effort.