Now here are some pictures of some units.

http://img45.exs.cx/img45/6194/veniceandnorth.jpg
On the left is a sienese pavise crossbowmen, then in the middle is a venetian colonial archer and on the right a venetian heavy infantrymen.

http://img31.exs.cx/img31/2755/bombard.jpg
This is a picture of a bombard which was the the main artillery used then.

http://img31.exs.cx/img31/2089/carroccio.jpg
This is a carroccio with faction flag.

http://img31.exs.cx/img31/4960/italianknights.jpg
The cavalry on the left is a light cavalry (demi-lance), he is still quite heavily armoured and on the right is a heavy cavalry.

http://img31.exs.cx/img31/8991/italianmiltia.jpg
On the right is a miltia spearmen and on the right is a miltia crossbowmen and at the bottom is a venetian infantryman.

http://img28.exs.cx/img28/8341/Light1.jpg
The man on the right is a italian knight, the man in the middle is a light infantry man and on the right is a bombard and crewman.

http://img28.exs.cx/img28/212/Milan.jpg
This shows a lombard knight on the right, a handgunner inthe middle and a heavy infantry men on the right (halbedir).

http://img28.exs.cx/img28/2118/pic_italy02.gif
This picture shows two stradiots and then one papal guard on the right.

Please anyone if you are intrested offer help or information.