I really like Emonga. I'm not too sure about it's sprite, but I'll get over that. I really like the Electric/Flying combination, only downside is that it's likely to be a stand-alone Pokemon, and it's highly unlikely that it'll have good stats, and thus it's a shame, but I'll be very unlikely to use it on my team. Unless GameFreak, break their trend and give it an evolution, with stats at least similar to that of Raichu.
Darumakka looks like a severed head. I don't really like it, but I don't dislike it. I won't be using it on my team, hence I am very neutral towards it. It's just another Pokedex space to be filled.
Shikijika changing with the seasons is cool, but again, I really couldn't care less about it. I think it'd be interesting if it's stats were affected by the season, and if it had a split evolution depending on the season it was evolved in.
The Sugomori art for Gigaiasu makes it look a lot better than the original pictures of it did, but I still don't really like it's design. Unless it has a really kick-*** evolution, I highly doubt I will use it.
That plant-thing is perhaps the worst design I have ever seen for a Pokemon, I absolutely hate it.