3 mins before I gotta study. Quick, make a critique.
First, let's talk about the vision. The background's not too good, but the clouds are impressive and are a good touch. The characters are also well drawn, except I keep thinking that Mykonos (I have to memorize the spelling, just to show off.) has no pupils in this drawing. But that's just me. Overall, I think this deserves a 4.
About originality... I'm pretty sure that there are a few drawings like these (read: not inspired by each other, that's how many people who just think of this pose.), but yeah, it is not too common on dA, and Mykonos is a bit unique for a Sonic FC, so yeah. 3.5.
Technique... Look at the clouds and Ghost. Although the sun, rest of the background needs more detail (something I go lazy on, sadly, but at least, yeah.) and Mykonos needs more shading. I'll give this a 4.
Impact? It's pretty big for me, seeing this and going like, "WTF?!? Mykonos is paired with Ghost?!?". Yeah, but overall, it'd be around 4, because there might be some Mykonos fans who wanted to pair her with their chars. Yes, Mykonos, that's how pretty you look... to them, at least.
So yeah, this is a cute drawing, but it's pulled down by lack of shading for Mykonos's head, lack of detail (not even minor stuff after clouds and the sun, jeez!) and the fact that Mykonos looks like she's humping Ghost. Okay, not the last bit. But look for yourself. Anyway, I shall end my critique-slash-rant here.
Actually this is very adorable! You're getting better with anatomy and proportion. The body placement in particular is nice. There's a bit of a stiffness with the female character though. She doesn't look so much as asleep/tired as she does like she's about to sneeze XD; Unless that's what you were going for! I think she should be more slumped over onto the male character to make it seem like she's tired.