I don't have nearly the artistic skills to actually offer advice to you on this, but I do think your bear is adorable and your lava is looking better and more lava-ish with each revision. Keep trying! You're doing great!

Thanks you 

The point of this is because I thought this is improve my fire , lava , glowing objects

And I made the drak parts at the end of the flowing lava since most of the lava at the end cools down
But also the lava is constantly pouring so I made some over laps on the black part of the lava and also
Made the lava cooler near the dark parts I'm quite confident with the bottom part of the lava
But the top part was more difficult I thought the narrow part will cool down much easier so it will have black parts
And also made it so that lava was overlapping the dark part to me this looks strange but.... maybe it's just me

Also I removed the shadows from the cart  to make it look more bright I guess maybe this was a bad idea...

It's generally a better idea to look at the real thing to get a feel for how it looks. If you only look at how other people did it, you'll just end up copying their interpretations of lava, and potentially copying their mistakes.

Since you have pouring lava, you should probably be looking at lava falls. Something to keep in mind is that since lava usually is usually not as liquid as water and doesn't have a uniform consistency (it's more like salsa than water, even when very "fluid"), you'll pretty much never get a lava flow that's so perfect like what you've drawn. It'll have some chunks in the flow, some parts will move slower than others, etc.

This is probably the closest ref I've found to what you seem to be going for. Notice how because all the lava is so hot (if it wasn't, it wouldn't flow so evenly or quickly), it's almost uniformly yellow-orange, there's not much noise in it. Also, even at these high temperatures, it's still got some chunkiness, the flows aren't perfectly straight, they have wider and narrower spots where the lava flows over itself. This is slightly cooler lava, notice how much rougher the flow is - this is because it's much thicker and more turbulent, as different parts flow at different rates and continuously slow down as they cool.

Pay attention to how in both ref photos, the hot (ligher) and cool (darker) bits give a very clear indication of the structure of the lava flow. You can see where it piles up, where it's thicker, where it's thinner, where there are flows of slightly cooler lava next to slightly hotter lava. This is what's missing from your rendition of it. You've tried to add too much "detail". In addition, because it's so thick, lava tends to form much larger chunks and flows than what you've drawn. Your lava flow is narrower than the bear but contains something like 4-5 neighbouring "channels", when it'd probably be 1-2.

Thanks for the advice !
I have a question what is neighbouring channels ?
And also I tried my best I only used 4 color and but I can't seem to get the glowing effect right
I also made the dark hardened part of lava

You don't need to post an enlargement, the forum has some code that makes images zoomable. Click to zoom, ctrl+click to zoom out.

Have you looked at photos of lava for reference? You'll probably find it doesn't look like that. In addition, it's so hot, that your bear would either be on fire or at least have singed most of the fur on its face off standing that close to what appears to be red-hot liquid lava.
Lava, when it's those colours, is a liquid, but you seem to have a pillar/block of it? I am not sure what you're trying to do with the lava, so I'm not which which tips to give.

I looked at lava before and I thought I got it right maybe not...
And about the block shape and bear that doesn't really matter for now I'm just trying to get the texture right
And it's pouring down from someone and also doesn't matter for me right now