My name is ***** ***** I would be happy to help with your pieces. However, normally we only do one (or perhaps two if they are related) item appraisals per question as that's how we get paid by JustAnswers, but I've looked through all the wall art pieces you photographed and the only item of any reasonable value is the watercolor of the coastal scene.
This is an original watercolor (aquarelle) by a French artist called François Gilletta Cambianis and signed lower left Giletta Cambianis by the artist. He was active around 1910 and known for these Mediterranean coastal scenes, primarily the Cote D'Azure and Nice in the south of France.
He's a minor artist, not much known about out of his native France, but he is 'listed' and if you were to sell on line (eBay etc) you should be able to get $50 - $80 for it.
The other pieces would fall into the yard sale or estate sale price range of $10 - $20.
The black, limited edition etching of the Spanish colonial mission painting and the Victorian print of the little girl, these two, perhaps a little more, $30 - $40 each.
I do hope this helps.