That is very cute. Even more so that your nan? did it for him. However, I can't just ignore the fact that he should not need a blanket, cuz he should have a nice warm large 4x8 enclosure. So why does he need a blanket other then it makes for a cute pic?
That's so awesome that she did that for you! Your little tort looks like he's getting pyramided from lack of humidity and hydration make sure he has access to a shallow water dish that he can walk into anytime he wants and daily warm shallow baths in your sink would help too. No more than an inch of water. It should go up to the seam of the top and bottom of his shell... maybe a little further up. 40 or 50 years from now you can take the same picture again....