Multiple Template Images – Image quality?

I thought you can use “q=100” (example) for it, or use “q=20” for low quality, like this:
<img src="<?php echo mti_get_image_url('first-image', 'w=100&h=100&zc=1?q=90'); ?>" alt="My image" />

Give it a try and let me know if that works 🙂