I'd definitely cut down to 30 - 32 and use Weather Storm rather than Snows. The plot, then, is to slow the opponent down so your Freeps can win (because black Orcs almost never kill).
Re. Snows, what skirmish events abilities will they be using that destroy your orcs? It's usually just effective for swam strategies, but it's been a while since I played Fship block.
So I'd drop 1
A Fell Voice on the Air, 1
Tower Assassin, 1 Trees are Strong
Go with 4 Retainers and Warriors over the Shamans. Shamans are cool if you have the twilight, but I don't think that will happen in Fship block (besides, they're easy to overwhelem outright).
That shaves of 5 cards, which is a pretty good start.
I've never played with the axes and black orcs, though they're not awful and can help against choke, I suppose (but Runners could soak up Archery).