$ perl lh2.pl
img: WWW::Mechanize::Image=HASH(0xa1fdc5c)
https://sites.google.com/site/lutherhavennm/_/rsrc/1255408739014/mission/Attachment3.jpg?height=278&width=420 
ext: jpg?height=278&width=420
ext: jpg
img: WWW::Mechanize::Image=HASH(0xa207784)
https://sites.google.com/site/lutherhavennm/_/rsrc/1255386973661/mission/Picture1.jpg?height=279&width=420 
ext: jpg?height=279&width=420
ext: jpg
img: WWW::Mechanize::Image=HASH(0xa2078ec)
https://sites.google.com/site/lutherhavennm/_/rsrc/1255408642180/mission/Attachment10.jpg?height=280&width=420 
ext: jpg?height=280&width=420
ext: jpg
img: WWW::Mechanize::Image=HASH(0xa2074dc)
https://sites.google.com/site/lutherhavennm/_/rsrc/1255387202014/mission/Looking%20up%20at%20the%20Bldg.JPG?height=315&width=420 
ext: JPG?height=315&width=420
ext: JPG
downloaded 4 images from https://sites.google.com/site/lutherhavennm/mission
to folder site_17
$ cat lh2.pl
#!/usr/bin/perl -w
use strict;
use feature ':5.10';
use WWW::Mechanize;
use LWP::Simple;
use Errno qw[ EEXIST ];

# get information about images
my $domain = 'https://sites.google.com/site/lutherhavennm/mission';
my $m      = WWW::Mechanize->new();
$m->get($domain);
my @list = $m->images();

# create new folder and download images to it.
my $counter = 0;
my $dir     = &mk_new_dir;
for my $img (@list) {
     print "img: $img\n";
    my $url = $img->url_abs();
    print "$url \n";

    my $ext = ($url =~ m/([^.]+)$/)[0];
    print "ext: $ext\n";
    $ext =~ s/\?.+//;
    print "ext: $ext\n";
    $counter++;
    my $filename = $dir . "/image_" . $counter. '.' . $ext;
    getstore( $url, $filename ) or die "Can't download '$url': $@\n";
}

# output
print "downloaded ", $counter, " images from ", $domain, "\n";
print "to folder ", $dir, "\n";

sub mk_new_dir {
    my $counter2 = 1;
    while (1) {
        my $word = "site";
        my $name = $word . '_' . $counter2++;
        if ( mkdir $name, 0755 ) {
            return $name;    # success, return new dir name
        }
        else {
            next if $!{EEXIST};    # mkdir failed because file exists
            die sprintf "(%d) %s", $!, $!;    # other failure; bail out!
        }
    }
}
$