Good suggestions from Anders.
I use a light gray cardboard background that curves up. I can send you some pics of figure photo set ups if you are interested. PM me your email address if you would like me to send them to you.
If possible use the same lighting fixtures that you painted the figure under.
Also, use a tripod. This makes a huge difference in the clearness of my photo's. You can get a serviceable one for ~$20 in the US (if you were in the US that is... :lol: )
Keith