Identification of a probable sylviidae
The first picture is an Icterine warbler. Because of the yellowish plumage (never in the eastern olivaceous) and the with fringes of tertiary characteristic of the species and never present in the genus Phylloscopus. Also the color of the leg, greish-bluish is quite specific of the Icterine.



The second and third picture are of a Willow warbler (Phylloscopus trochilus). The legs are pale compared to a chiffchaff and the primary projection (the length of the primaries that pass the tertiary) is extremely long and very typical of the willow warbler. You can see the difference in the image below.
 Here a useful webpage