Bu etek sana çok yakışmış, bence rengi de güzel.

Bu etek means this skirt.

In Turkish, demonstratives like bu (this) usually come before the noun, just like in English:

• bu etek = this skirt
• bu kitap = this book

Also, Turkish has no word exactly like English a/an/the, so bu etek is simply this skirt.

Because the verb yakışmak takes the dative case, not the plain subject form.

• sen = you
• sana = to you

So:

• Bu etek sana yakışmış = This skirt suits you
• literally: This skirt has suited to you

With yakışmak, the thing that looks good is the grammatical subject, and the person it suits is put in the dative:

• Bu renk sana yakışıyor = This color suits you
• Şapka ona yakıştı = The hat suited him/her

Yakışmak means something like:

• to suit
• to look good on someone
• to be becoming

So Bu etek sana çok yakışmış means the skirt looks very good on the person being spoken to.

A useful pattern is:

• X, Y-e yakışıyor = X suits Y

For example:

• Bu gömlek bana yakışıyor = This shirt suits me
• Mavi sana yakışıyor = Blue suits you

Çok means very / a lot / really, depending on context.

Here it strengthens the verb phrase:

• çok yakışmış = really suits you / looks very good on you

In Turkish, çok usually comes before the word it modifies:

• çok güzel = very beautiful
• çok iyi = very good
• çok yakışmış = suited very well / really suits

So the sentence is giving a strong compliment.

Yakışmış is from yakışmak + -mış.

This -mış form often has shades like:

• the speaker is making an observation
• the speaker has just noticed the result
• the tone can sound a little softer or more natural in compliments

So Bu etek sana çok yakışmış is a very natural way to say something like:

• This skirt really suits you
• That skirt looks great on you
• This skirt has turned out to suit you really well

Comparison:

• yakışıyor = it suits you / it is suiting you
• yakıştı = it suited you
• yakışmış = it seems to suit you / it really suits you, as I can see

In real-life compliments, -mış is very common.

Bence means in my opinion or I think.

It comes from:

• ben = I
• -ce/-ca = a suffix that can mean according to / in the view of

So:

• bence = according to me / in my opinion

Examples:

• Bence güzel = I think it’s nice
• Bence doğru = I think it’s correct

In your sentence, bence softens the opinion:

• bence rengi de güzel = I think its color is nice too

Renk means color, but rengi means its color or the color of it.

This is because Turkish often uses a possessive suffix when talking about a feature belonging to something.

• renk = color
• rengi = its color / the color

Here, rengi refers to the skirt’s color.

The fuller version could be:

• Bu eteğin rengi de güzel = The color of this skirt is nice too

But Turkish often leaves out the full possessor when it is already obvious from context. So just rengi is enough.

Here de means also or too.

So:

• rengi de güzel = its color is also nice / the color is nice too

This shows that the speaker is adding a second compliment:

1. the skirt suits you well
2. its color is nice too

Important: this de is written separately because it is the word meaning also/too.

Compare:

• de = also, too
• -de = in, on, at ← this is a suffix and is written attached

So in this sentence, it is definitely the separate word de.

In Turkish, the verb to be is often not expressed in the present tense.

So:

• rengi de güzel literally looks like its color also beautiful
• but it means its color is nice too

The missing is is understood automatically.

This is very normal in Turkish:

• Hava güzel = The weather is nice
• Bu zor = This is difficult
• Rengi güzel = Its color is nice

If Turkish wants to be more formal or emphatic, it can use -dir, but in everyday speech it is usually omitted.

A close literal breakdown is:

• Bu etek = this skirt
• sana = to you
• çok yakışmış = has suited very well / really suits
• bence = in my opinion
• rengi de güzel = its color also nice

So a very literal rendering would be:

This skirt has suited you very well; in my opinion, its color is also nice.

More natural English would be:

• This skirt really suits you; I think the color is nice too.
• That skirt looks great on you, and I think the color is nice too.

Yes, very natural.

It sounds warm and conversational. A native speaker might say this when someone is wearing a skirt and they want to compliment both:

• how it looks on the person
• the color itself

The tone is friendly and positive. The use of yakışmış and bence makes it sound especially natural in spoken Turkish.