I like the top one but the green on there makes me nervous. It may be bronze disease and needs to be cleaned. Not sure about how much I would pay for them though.
I would be wary of both. The bottom one looks over cleaned. The top one I would want to see in hand. There are a couple of patches that on the obverse that I would want to test for bronze disease. Not sure from the picture which bits are mineral deposit and which are patina. You can compare these coins on Vcoins for full retail value, but I wouldn't pay much for them.
Not everything green is bad. Looks like a hard green patina to me...except for the light spot on Trajan's neck which is probably BD. Plan on treating that one with verdicare, so a price reduction is in order.
I think the top one was treated for bronze disease and then affected areas repatinated with Jax or something similar. If that's all natural I'd be very surprised.