I think you need to use the "Share this arena" Link, that one won't connect for me.
http://arenamastery.com/nCs7
I don't play Warlock much, so take this with a grain of salt, but here's where I differ from you:
6. I think LotA is generally better than Unstable Ghoul.
8. Healer is better than Gurubashi, even more so because as Warlock your life is a real resource.
10. Deathlord is pretty bad in arena. You're better off with Blademaster
11. Darkbomb > Faerie Dragon. In general, early game removal is better than early game minions because of the tempo. You get the damage immediately.
12. Hungry Dragon is really good. There are very few things you should take over it. Probably just Piloted Shredder and OP class cards. Warlock doesn't have any of those. Shadowbolt is good, but not great.
16. You might want to think about War Golem here. You don't have any big dudes yet, and Panda is a little worse for Warlock than for other classes since the card advantage isn't as important.
21. Soulfire is still really good in arena. I think I still take it over any 1-2 drop minion. Same idea as Darkbomb.
24. Again, Soulfire.
EDIT: I was looking at 4/28 Warlock