You're welcome. If it's OK, I'd like to tell you some information about sourcing and also about some free sites that you can use that have awesome images that are free. Once you go to the sites, you'll see on the front page that the images are free for you to use under a special Creative Commons License.
In fact, I just checked, and you can find beautiful Mandalas on Pixabay, a site that has free images.
IMAGES used in your post
Images that you copy from Google are not appropriate to use in your posts. In fact, they are not free, meaning you don't have permission to use them. If you locate a photo in Google search you want to use, you have to click on the link to see the true source of the image with the original site where it's found. The image belongs to someone. If the site states that the image is free to use, then you can copy that particular link as the source of the image. If not, then do another search until you locate one that is free to use.
Images from any commercial site where you have to pay for the image or pay for a subscription. IStock is one of those sites, as is Getty Images and others. Their images are not free to use. The particular image you linked to costs $33. If you get a subscription to IStock for $9.99, then you have permission to use some images. Did you pay the one-time fee to use that particular image; or did you get a subscription?
Only images that are your property or you get from sites that give you permission to use the images there are free to include in your blog. By taking other people's property is seen as plagiarism.
There are numerous sites that you can obtain images that are free to use under a special license called "Creative Commons". The sites will state this when you visit their site. Why not check out the following and see whether you can locate suitable images:
Free Images:
Pixabay
Unsplash
Pexels
Stocksnap.io
Kaboompics
Wikipedia
Imgflip
Freepik
Burst (majority of images are free. excellent images, but choose carefully)
Clipart-Library
Free Images with transparent backgrounds:
PurePNG
PNGMart
If you have any other questions, let me know.
Take care and have a good weekend.