Both Sand Veil and Sandstream sound nice. I kind of want to save the Sandstreamer for our Gen for a Steel type, since a Ground and a Rock Sandstreamer both exist. Both Sand Veil actually sounds really nice.I like the mentioning of the D&D mummies earlier, and was thinking about how their stats are related, how good spec def, works much like strong magical immunity and such. As often as I hate seeing the ability, with the mummy, ugh, pressure sounds good. It tanks, it absorbs power, ectera.
This also feels bad saying, but Sand Veil? Giving it immunity to sandstorms (its a freaking mummy), it would be one of the few pokes that I think it would be just on. Giving it to garchomp, seriously, was almost a joke of why not make this shark even sillier than it already is...But you might see the mummy hanging out next to a Cacturn, and it would look approperate, so why not sand stream.
My thoughts ...
Mummy: A simple, yet effective design that could work fairly well. For abilities, Insomnia would probably be my first choice, and Immunity could work, but something unique like Dry Skin could work, as well. It would help it have a huge weakness in Infernape while letting it simultaneously counter Gyarados. It already counters Heracross and, in some cases, Tyranitar. It already resists Stone Edge from Gyarados, and soaking up any Waterfalls would be a nice little ability. Yet, it would not be overpowered -- Infernape, Heatran, and anything with a Fire-typed attack would destroy it. While it gets another immunity in Water, it gets a needed added weakness to accompany Ghost, Flying, and Psychic.
As much as they fit, Immunity and Insomnia aren't too original. Of course, pairing the two together is fun, but doesn't really help, since Ghost/Fight loses to most Hypnosis users (basically it works against Grass types and Breloom). Dry Skin + Sand Veil would be a nice ability combo. And to those who say Mummy's like the sun, they usually stay inside of the pyramid, dungeon, etc. Water Absorbing is harder to explain, but Pyramids and stuff get damp on the inside.
Djinn: I love the design, but it would need some tweaking in the spriting process to become more Pokemon-esque. For abilities, Vital Spirit would undoubtedly be my top choice. Thick Fat might not be a bad idea, either. Immunity works here, too, as does Clear Body. Another thing to think about is Forewarn, being a Genie, and all. Hustle, being very strong without eyes, could also work.
Forewarn and Hustle sound nice. Clear Body + Bulk Up removes the normal Flying type with Intimidate counters. Immunity sounds really bland, and muscles do not equal fat.
Marionette: Simply too Banette-esque for me, and doesn't really fit the base statistics. The first ability that screamed out to be was Limber.
Agreeing with Limber. Another idea I had for it was Rough Skin, but if it does win, I think we would remove the Spikes on the handle, so that doesn't really fit anymore.
And to those complaining about the art. I choose what I felt was the best piece of art. I'm sorry if you had an amazing design, if you couldn't draw it on the same level as the other submitters, I didn't select you. And trust me, most people would overlook pixel art when they see nice hand drawn and rendered work. Yes it's biased, but would you rather me say "Here is the link to the art thread, vote for what you want from here"? Plus, the results would most likely be the same.