the one on the left looks vintage and due to the cutout of the neck on the body end of the low strings, looks like it's actually worth a bit more than a fiver... judging by the picture alone, IF it doesn't have any neck warp or body damage, you COULD get up to a couple of hundred quid if it has a name inside.
the other one, i THINK i can see electrics on it on the side of the body, despite condition, the electrics are £20-£30 alone regardless of make, though if it's a better make such as Fishman or BBand then you could get as much as £70 for the electrics alone (very easy to remove), plus the rest of the guitar seems half decent, i'd be asking £50-£60 for that alone. at least
but if you wanna let them go for a fiver, be my guest. i'd feel like a thief handing over a fiver for both guitars. so much so i'd actually refuse and have to offer more.
for them both, in the condition they're in and from what i can only see in the pictures (i can't make out brands or see condition, i'm going only on the one picture) nothing less than £75 for the two is what i'd be A) happy selling them for and B) happy buying them for. it would be forever on my conscience if i underpayed for something, especially a guitar (i'm a BIG guitar enthusiast)
choose to ignore me if you like, i'm just putting my tuppence worth and will now quietly walk away.