2-letter logo comprised of the letters H D in the form of a smiling face

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This customer received 331 logo designs from 160 designers. They chose this logo design from MaymunaDesigner as the winning design.
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Logo Design Brief
I am looking for a simple yet fun/playful two-letter graphic (specifically, HD) for my dental practice, which is called Hoki Dental. I have uploaded two images as a starting point.
The HD sample logo is what I came up with to represent a smiling face from the initials of my dental practice name (i.e Hoki Dental). However, I think this particular design is too harsh/sterile and not "cute" enough.
The second image of Face & Smile's logo is much softer and more playful, which is the look and feel I am looking for.
With regards to colour, I am wanting the H and the D to be different colours, with one matching the red colour of Face and Smile's logo and the other being a dark grey that goes nicely with the selected red.
If you are able to create a 2-letter logo associated both with and without the name of the business (i.e. Hoki Dental), that would be greatly appreciated.
Logo Text
HD Hoki Dental
Logo styles of interest
Lettermark Logo
Acronym or letter based logo (text only)



Font styles to use
Colors
Colors selected by the customer to be used in the logo design:
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- The letters HD represented as a smiling face
The letters in two different colours: a red and a darl grey
Nice to have
- A wink
Should not have
- Anything that represents a solitary tooth or a dental instrument