I like this one, as we can see you have more quality work here with good resources. You're going on the right way, I am glad to see that
About your comment for low quality background, if you see in your Photoshop more quality then it's probably one thing: when you're saving images in jpg, if you use Save for web check out the scale and use quality above 80 / also, when you're saving to jpg file you can choose quality between 1-12, above 9 is probably good but you can try the maximum. Anyway, I think it's only about saving options, so you need to find the best settings.
Also here is a little tip in Photoshop: as we can see you have lamp which is not shining and how to make it shine is really simply
create a new layer over the lamp, use brush tool (choose soft brush and proper size of brush-needs to be large than lamp) with 30% transparency, pick up yellow color and click over the lamp once or twice. Set that layer to soft brush and I think that should do it
you can always play with that kind of simply details.
Question I always ask, do you use layer mask in Photoshop?