What is the current ratio for legit gaia gold for USD/GBP?

I'm going to make another art commission thread on Gaia to make some money (hopefully). I've asked around deviantart of the worth of my art in USD and it varied between $40 - $90 depending on detail etc.

I'm too lazy to calculate it myself as I'm constantly drawing all the time. (If you're interested drop a PM ^_^)