Hmmmm. Neither of those are bad, but it's hard to tell from the photos how the shoulder has been done. The first one just looks kinda gathered, the second looks like they've tapered it instead - I'd be concerned it wouldn't spread the weight very effectively and could dig in/give you a sore shoulder after a little while. No doubt either of them would work, and I'm sure they'd be fine for baby. Rings look fine in both too. You could probably do better (get something more comfortable, that you can get more wear out of because you'll be able to wear it when baby's bigger) by spending $10-20 more though
I love
Oyako ring slings, for example - see how the shoulder part is pleated? And $55 is very reasonable for how much work is in them. I've also heard great things about
Keoni slings although they're slightly more expensive.