Thank you so much for kind words!
Honestly, I don't really know anything about art and I didn't think crayons and oil pastels were different as I have been using them (oil pastels) since small. So when I wanted to try this out, thinking it would be a nice gift for my friend if it worked, I just used the one I was familiar with, pastels. This is actually the first time I used a canvas
As for melting, I used a hairdryer. The wavy lines idea, I saw that somewhere too...
But I'm happy it worked out well in the end
And really appreciate all the comments.