@ Malamute:
Here are the photos for size comparison.
First picture with two Artizan figures:

Second photo with one Artizan figure on the left and a Foundry figure ("Tuco") on the right:

Third photo with Tuco on the left and a Dixon miniature on the right (they are a little bit smaller then the Artizan and Foundry guys):

Finally two Dixon figures:

In the background there are some Snapdragon houses (flat pack kit) used to show the scale of the cacti ... and as a preview on the finished buildings

The image quality is not the best (I have some problems with the camera for a while and do not know what is wrong?!) but I hope they help a little bit.
Happy painting ...