Yes. And shading them all is downright murder.
If you want constructive criticism, you could have put more effort into the spikes and the head scales. Make the spikes more simmetrical, and make the head scales denser and the peaks of their curves more to the left (your left; all sides in this text are from your perspective, except "front" and "behind", which are from Sapphira's perspective). I see you already tried to redraw them to be more lopsided, but should have done even more so. I see you also tried to draw the nostril opening as realistic, which is commendable.
You can skip the next five paragraphs if you're done with your picture.
If you don't feel like drawing a new picture, you can try some shading, if you want, under the eye, around the nostril and around the horn. If we assume the light is coming from the left, then you should darken the skin immediately above the nostril,
a dark line that follows the upper edge of the upper eyelid and a lighter line that follows the lower edge of the upper eyelid,
a line at the front of the lower edge of the lower eyelid, which slightly widens as it goes follows the eyelid outline to the right, until you reach half of the eyelid, and then it widens and darkens faster towards the right end of the eyelid, becoming darkest directly behind it,
and you should darken the horn socket from right to left, a line at the bottom of the socket that becomes darker as it goes left around the socket, and then goes along the left edge of the socket, which should be as dark or darker than the back of the eye.
The darkest area should be, however, behind the right edge of the socket, since no light reaches that part. You can also darken the scales immediately below the check. You can also try connecting the dark areas with other dark lines.
Alright, enough being a smartass. For a person who doesn't practice much (or at all), you're not bad at all. You do put effort into shading and perspective, but since your brain is not trained you can't get it quite right (my brain is untrained too). Drawing is like sports. It's a frustrating line of repetitions with variations. I'm pretty much in that frustrating stage too, only slightly ahead of you. However, I've heard once you reach a certain level of skill, then drawing becomes like playing, you feel liberated and your brain starts noticing things, details it didn't notice before. And then real artistic development begins.
If you want to to reach that stage, good luck. If you want to just have fun with the occasional drawing of something you like, well, enjoy it.
