Good & good. Though I think you're underestimating Glacier Invasion's potential scale. If you mapped out a giant ice field, a single swamp isn't going to get rid of it.The first one is useful because it gives you an ice source to work with. Thus giving you the terrain advantage. its drawbacks are that once they're summoned you can't use anything but ice water and wind and you can't rearrange them after the first summoning. They're also quite easy to deal with by using the swamp of the under world to bury all of the ice in a swamp thus making you waste the jutsu.
The second one is very useful because you can cuff someones hand to to their leg so they can't preform handsigns or cuff their feet together while they're running so they fall. or even cuff their neck to their foot so they're forced to bend over. Very good jutsu but since the cuffs are so low in rank its easy to break them with many jutsu, however for a short distraction like keeping them from making signs or forcing them to trip its very useful.
That's all I've got as far as ice customs go. Have fun with 'em!